45817831218769 has 3 divisors (see below), whose sum is σ = 45817837987657. Its totient is φ = 45817824449882.

The previous prime is 45817831218763. The next prime is 45817831218781. The reversal of 45817831218769 is 96781213871854.

It is a happy number.

The square root of 45817831218769 is 6768887.

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 is not a de Polignac number, because 45817831218769 - 2¹¹ = 45817831216721 is a prime.

It is a super-2 number, since 2×45817831218769² (a number of 28 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 = 45817831218698 and 45817831218707.

It is not an unprimeable number, because it can be changed into a prime (45817831218763) 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, 3384444 + ... + 10153330.

Almost surely, 2^{45817831218769} is an apocalyptic number.

45817831218769 is the 6768887-th square number.

45817831218769 is the 3384444-th centered octagonal number.

It is an amenable number.

45817831218769 is a deficient number, since it is larger than the sum of its proper divisors (6768888).

45817831218769 is an frugal number, since it uses more digits than its factorization.

45817831218769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13537774 (or 6768887 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 70.

The spelling of 45817831218769 in words is "forty-five trillion, eight hundred seventeen billion, eight hundred thirty-one million, two hundred eighteen thousand, seven hundred sixty-nine".