74693553057 has 32 divisors (see below), whose sum is σ = 113774814720. Its totient is φ = 48401712000.

The previous prime is 74693553031. The next prime is 74693553073. The reversal of 74693553057 is 75035539647.

74693553057 is a `hidden beast` number, since 74 + 6 + 9 + 35 + 530 + 5 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-74693553057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74693552994 and 74693553012.

It is not an unprimeable number, because it can be changed into a prime (74693553017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175507 + ... + 424487.

It is an arithmetic number, because the mean of its divisors is an integer number (3555462960).

Almost surely, 2^74693553057 is an apocalyptic number.

It is an amenable number.

74693553057 is a deficient number, since it is larger than the sum of its proper divisors (39081261663).

74693553057 is a wasteful number, since it uses less digits than its factorization.

74693553057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249302 (or 249296 counting only the distinct ones).

The product of its (nonzero) digits is 11907000, while the sum is 54.

The spelling of 74693553057 in words is "seventy-four billion, six hundred ninety-three million, five hundred fifty-three thousand, fifty-seven".