7880298852969 has 27 divisors (see below), whose sum is σ = 11416241338437. Its totient is φ = 5238076197024.

The previous prime is 7880298852961. The next prime is 7880298853027. The reversal of 7880298852969 is 9692588920887.

It is a happy number.

The square root of 7880298852969 is 2807187.

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

7880298852969 is a `hidden beast` number, since 7 + 8 + 8 + 0 + 2 + 9 + 88 + 529 + 6 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 228878998569 + 7651419854400 = 478413^2 + 2766120^2 .

It is not a de Polignac number, because 7880298852969 - 2³ = 7880298852961 is a prime.

It is a super-2 number, since 2×7880298852969² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7880298852961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3343358539 + ... + 3343360895.

Almost surely, 2^{7880298852969} is an apocalyptic number.

7880298852969 is the 2807187-th square number.

7880298852969 is the 1403594-th centered octagonal number.

It is an amenable number.

7880298852969 is a deficient number, since it is larger than the sum of its proper divisors (3535942485468).

7880298852969 is an frugal number, since it uses more digits than its factorization.

7880298852969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5514 (or 2757 counting only the distinct ones).

The product of its (nonzero) digits is 2508226560, while the sum is 81.

Multiplying 7880298852969 by its sum of digits (81), we get a square (638304207090489 = 25264683²).

The spelling of 7880298852969 in words is "seven trillion, eight hundred eighty billion, two hundred ninety-eight million, eight hundred fifty-two thousand, nine hundred sixty-nine".