74957793144 has 128 divisors (see below), whose sum is σ = 205117463040. Its totient is φ = 22686884352.

The previous prime is 74957793143. The next prime is 74957793151. The reversal of 74957793144 is 44139775947.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74957793143) 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, 17201814 + ... + 17206170.

It is an arithmetic number, because the mean of its divisors is an integer number (1602480180).

Almost surely, 2^74957793144 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 74957793144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102558731520).

74957793144 is an abundant number, since it is smaller than the sum of its proper divisors (130159669896).

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

74957793144 is a wasteful number, since it uses less digits than its factorization.

74957793144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5269 (or 5265 counting only the distinct ones).

The product of its digits is 26671680, while the sum is 60.

The spelling of 74957793144 in words is "seventy-four billion, nine hundred fifty-seven million, seven hundred ninety-three thousand, one hundred forty-four".