74436972544 has 104 divisors (see below), whose sum is σ = 164682348480. Its totient is φ = 33357004800.

The previous prime is 74436972481. The next prime is 74436972551. The reversal of 74436972544 is 44527963447.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3187342 + ... + 3210610.

It is an arithmetic number, because the mean of its divisors is an integer number (1583484120).

Almost surely, 2^74436972544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74436972544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82341174240).

74436972544 is an abundant number, since it is smaller than the sum of its proper divisors (90245375936).

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

74436972544 is a wasteful number, since it uses less digits than its factorization.

74436972544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23375 (or 23353 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 55.

The spelling of 74436972544 in words is "seventy-four billion, four hundred thirty-six million, nine hundred seventy-two thousand, five hundred forty-four".