74375735644 has 18 divisors (see below), whose sum is σ = 151407747960. Its totient is φ = 31875315192.

The previous prime is 74375735633. The next prime is 74375735677. The reversal of 74375735644 is 44653757347.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 189733824 + ... + 189734215.

Almost surely, 2^74375735644 is an apocalyptic number.

It is an amenable number.

74375735644 is an abundant number, since it is smaller than the sum of its proper divisors (77032012316).

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

74375735644 is a wasteful number, since it uses less digits than its factorization.

74375735644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379468057 (or 379468048 counting only the distinct ones).

The product of its digits is 29635200, while the sum is 55.

The spelling of 74375735644 in words is "seventy-four billion, three hundred seventy-five million, seven hundred thirty-five thousand, six hundred forty-four".