77330957265 has 48 divisors (see below), whose sum is σ = 137204825472. Its totient is φ = 40270148352.

The previous prime is 77330957243. The next prime is 77330957267. The reversal of 77330957265 is 56275903377.

77330957265 is a `hidden beast` number, since 7 + 7 + 3 + 3 + 0 + 9 + 572 + 65 = 666.

It is not a de Polignac number, because 77330957265 - 2¹⁵ = 77330924497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77330957267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8031244 + ... + 8040866.

It is an arithmetic number, because the mean of its divisors is an integer number (2858433864).

Almost surely, 2^77330957265 is an apocalyptic number.

It is an amenable number.

77330957265 is a deficient number, since it is larger than the sum of its proper divisors (59873868207).

77330957265 is a wasteful number, since it uses less digits than its factorization.

77330957265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13830 (or 13827 counting only the distinct ones).

The product of its (nonzero) digits is 8334900, while the sum is 54.

The spelling of 77330957265 in words is "seventy-seven billion, three hundred thirty million, nine hundred fifty-seven thousand, two hundred sixty-five".