77469793074 has 12 divisors (see below), whose sum is σ = 167851218366. Its totient is φ = 25823264352.

The previous prime is 77469793031. The next prime is 77469793081. The reversal of 77469793074 is 47039796477.

77469793074 is a `hidden beast` number, since 7 + 7 + 469 + 79 + 30 + 74 = 666.

It can be written as a sum of positive squares in only one way, i.e., 41150962449 + 36318830625 = 202857^2 + 190575^2 .

It is a Curzon number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2151938679 + ... + 2151938714.

Almost surely, 2^77469793074 is an apocalyptic number.

77469793074 is an abundant number, since it is smaller than the sum of its proper divisors (90381425292).

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

77469793074 is a wasteful number, since it uses less digits than its factorization.

77469793074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4303877401 (or 4303877398 counting only the distinct ones).

The product of its (nonzero) digits is 56010528, while the sum is 63.

The spelling of 77469793074 in words is "seventy-seven billion, four hundred sixty-nine million, seven hundred ninety-three thousand, seventy-four".