74627757642 has 32 divisors (see below), whose sum is σ = 158501459520. Its totient is φ = 23358101760.

The previous prime is 74627757587. The next prime is 74627757689. The reversal of 74627757642 is 24675772647.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2883709 + ... + 2909472.

It is an arithmetic number, because the mean of its divisors is an integer number (4953170610).

Almost surely, 2^74627757642 is an apocalyptic number.

74627757642 is an abundant number, since it is smaller than the sum of its proper divisors (83873701878).

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

74627757642 is a wasteful number, since it uses less digits than its factorization.

74627757642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5793318.

The product of its digits is 27659520, while the sum is 57.

The spelling of 74627757642 in words is "seventy-four billion, six hundred twenty-seven million, seven hundred fifty-seven thousand, six hundred forty-two".