74699721402 has 64 divisors (see below), whose sum is σ = 157826672640. Its totient is φ = 23523368000.

The previous prime is 74699721401. The next prime is 74699721443. The reversal of 74699721402 is 20412799647.

It is not an unprimeable number, because it can be changed into a prime (74699721401) 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, 5833627 + ... + 5846417.

It is an arithmetic number, because the mean of its divisors is an integer number (2466041760).

Almost surely, 2^74699721402 is an apocalyptic number.

74699721402 is an abundant number, since it is smaller than the sum of its proper divisors (83126951238).

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

74699721402 is a wasteful number, since it uses less digits than its factorization.

74699721402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13339.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 74699721402 in words is "seventy-four billion, six hundred ninety-nine million, seven hundred twenty-one thousand, four hundred two".