77967795258 has 96 divisors (see below), whose sum is σ = 173857681920. Its totient is φ = 25243384320.

The previous prime is 77967795253. The next prime is 77967795259. The reversal of 77967795258 is 85259776977.

77967795258 is a `hidden beast` number, since 7 + 7 + 96 + 7 + 7 + 9 + 525 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (77967795251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52361778 + ... + 52363266.

It is an arithmetic number, because the mean of its divisors is an integer number (1811017520).

Almost surely, 2^77967795258 is an apocalyptic number.

77967795258 is an abundant number, since it is smaller than the sum of its proper divisors (95889886662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77967795258 is a wasteful number, since it uses less digits than its factorization.

77967795258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124 (or 2121 counting only the distinct ones).

The product of its digits is 466754400, while the sum is 72.

The spelling of 77967795258 in words is "seventy-seven billion, nine hundred sixty-seven million, seven hundred ninety-five thousand, two hundred fifty-eight".