77252869690 has 16 divisors (see below), whose sum is σ = 146373858720. Its totient is φ = 29274771600.

The previous prime is 77252869649. The next prime is 77252869703. The reversal of 77252869690 is 9696825277.

It is a super-2 number, since 2×77252869690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203296836 + ... + 203297215.

It is an arithmetic number, because the mean of its divisors is an integer number (9148366170).

Almost surely, 2^77252869690 is an apocalyptic number.

77252869690 is a deficient number, since it is larger than the sum of its proper divisors (69120989030).

77252869690 is a wasteful number, since it uses less digits than its factorization.

77252869690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406594077.

The product of its (nonzero) digits is 22861440, while the sum is 61.

The spelling of 77252869690 in words is "seventy-seven billion, two hundred fifty-two million, eight hundred sixty-nine thousand, six hundred ninety".