74274742820 has 48 divisors (see below), whose sum is σ = 156427320000. Its totient is φ = 29624227200.

The previous prime is 74274742807. The next prime is 74274742837. The reversal of 74274742820 is 2824747247.

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, 14558270 + ... + 14563370.

It is an arithmetic number, because the mean of its divisors is an integer number (3258902500).

Almost surely, 2^74274742820 is an apocalyptic number.

It is an amenable number.

74274742820 is an abundant number, since it is smaller than the sum of its proper divisors (82152577180).

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

74274742820 is a wasteful number, since it uses less digits than its factorization.

74274742820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068 (or 7066 counting only the distinct ones).

The product of its (nonzero) digits is 1404928, while the sum is 47.

The spelling of 74274742820 in words is "seventy-four billion, two hundred seventy-four million, seven hundred forty-two thousand, eight hundred twenty".