74949534768 has 80 divisors (see below), whose sum is σ = 200201472000. Its totient is φ = 24136619520.

The previous prime is 74949534757. The next prime is 74949534773. The reversal of 74949534768 is 86743594947.

It is a junction number, because it is equal to n+sod(n) for n = 74949534699 and 74949534708.

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, 849268 + ... + 933356.

It is an arithmetic number, because the mean of its divisors is an integer number (2502518400).

Almost surely, 2^74949534768 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 74949534768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100100736000).

74949534768 is an abundant number, since it is smaller than the sum of its proper divisors (125251937232).

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

74949534768 is a wasteful number, since it uses less digits than its factorization.

74949534768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84730 (or 84724 counting only the distinct ones).

The product of its digits is 182891520, while the sum is 66.

The spelling of 74949534768 in words is "seventy-four billion, nine hundred forty-nine million, five hundred thirty-four thousand, seven hundred sixty-eight".