74907197538 has 16 divisors (see below), whose sum is σ = 153468405216. Its totient is φ = 24360064160.

The previous prime is 74907197459. The next prime is 74907197549. The reversal of 74907197538 is 83579170947.

It is a super-2 number, since 2×74907197538² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152250156 + ... + 152250647.

It is an arithmetic number, because the mean of its divisors is an integer number (9591775326).

Almost surely, 2^74907197538 is an apocalyptic number.

74907197538 is an abundant number, since it is smaller than the sum of its proper divisors (78561207678).

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

74907197538 is a wasteful number, since it uses less digits than its factorization.

74907197538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304500849.

The product of its (nonzero) digits is 13335840, while the sum is 60.

The spelling of 74907197538 in words is "seventy-four billion, nine hundred seven million, one hundred ninety-seven thousand, five hundred thirty-eight".