7964457246769 has 3 divisors (see below), whose sum is σ = 7964460068907. Its totient is φ = 7964454424632.

The previous prime is 7964457246689. The next prime is 7964457246791. The reversal of 7964457246769 is 9676427544697.

The square root of 7964457246769 is 2822137.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 5763720600625 + 2200736646144 = 2400775^2 + 1483488^2 .

It is not a de Polignac number, because 7964457246769 - 2²⁹ = 7963920375857 is a prime.

It is a super-2 number, since 2×7964457246769² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7964457246695 and 7964457246704.

It is not an unprimeable number, because it can be changed into a prime (7964457246799) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1411069 + ... + 4233205.

It is an arithmetic number, because the mean of its divisors is an integer number (2654820022969).

Almost surely, 2^{7964457246769} is an apocalyptic number.

7964457246769 is the 2822137-th square number.

7964457246769 is the 1411069-th centered octagonal number.

It is an amenable number.

7964457246769 is a deficient number, since it is larger than the sum of its proper divisors (2822138).

7964457246769 is an frugal number, since it uses more digits than its factorization.

7964457246769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5644274 (or 2822137 counting only the distinct ones).

The product of its digits is 3840721920, while the sum is 76.

The spelling of 7964457246769 in words is "seven trillion, nine hundred sixty-four billion, four hundred fifty-seven million, two hundred forty-six thousand, seven hundred sixty-nine".