74835696642 has 64 divisors (see below), whose sum is σ = 174020106240. Its totient is φ = 21011026176.

The previous prime is 74835696641. The next prime is 74835696653. The reversal of 74835696642 is 24669653847.

It is not an unprimeable number, because it can be changed into a prime (74835696641) 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, 9330618 + ... + 9338634.

It is an arithmetic number, because the mean of its divisors is an integer number (2719064160).

Almost surely, 2^74835696642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74835696642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87010053120).

74835696642 is an abundant number, since it is smaller than the sum of its proper divisors (99184409598).

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

74835696642 is a wasteful number, since it uses less digits than its factorization.

74835696642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11855.

The product of its digits is 52254720, while the sum is 60.

The spelling of 74835696642 in words is "seventy-four billion, eight hundred thirty-five million, six hundred ninety-six thousand, six hundred forty-two".