77934460194 has 24 divisors (see below), whose sum is σ = 173421728220. Its totient is φ = 25276040928.

The previous prime is 77934460139. The next prime is 77934460199. The reversal of 77934460194 is 49106443977.

77934460194 is a `hidden beast` number, since 7 + 7 + 9 + 3 + 446 + 0 + 194 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 76971288969 + 963171225 = 277437^2 + 31035^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 77934460194.

It is not an unprimeable number, because it can be changed into a prime (77934460199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58508689 + ... + 58510020.

Almost surely, 2^77934460194 is an apocalyptic number.

77934460194 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

77934460194 is an abundant number, since it is smaller than the sum of its proper divisors (95487268026).

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

77934460194 is a wasteful number, since it uses less digits than its factorization.

77934460194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117018754 (or 117018751 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 77934460194 in words is "seventy-seven billion, nine hundred thirty-four million, four hundred sixty thousand, one hundred ninety-four".