77290293641956 has 96 divisors (see below), whose sum is σ = 144156746547072. Its totient is φ = 36215933276160.

The previous prime is 77290293641857. The next prime is 77290293641959. The reversal of 77290293641956 is 65914639209277.

It is not an unprimeable number, because it can be changed into a prime (77290293641959) 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 31 ways as a sum of consecutive naturals, for example, 79349646 + ... + 80317786.

It is an arithmetic number, because the mean of its divisors is an integer number (1501632776532).

Almost surely, 2^{77290293641956} is an apocalyptic number.

It is an amenable number.

77290293641956 is a deficient number, since it is larger than the sum of its proper divisors (66866452905116).

77290293641956 is a wasteful number, since it uses less digits than its factorization.

77290293641956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968429 (or 968427 counting only the distinct ones).

The product of its (nonzero) digits is 308629440, while the sum is 70.

The spelling of 77290293641956 in words is "seventy-seven trillion, two hundred ninety billion, two hundred ninety-three million, six hundred forty-one thousand, nine hundred fifty-six".