74140561480 has 32 divisors (see below), whose sum is σ = 168927868800. Its totient is φ = 29280828096.

The previous prime is 74140561477. The next prime is 74140561541. The reversal of 74140561480 is 8416504147.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 11727942 + ... + 11734261.

It is an arithmetic number, because the mean of its divisors is an integer number (5278995900).

Almost surely, 2^74140561480 is an apocalyptic number.

It is an amenable number.

74140561480 is an abundant number, since it is smaller than the sum of its proper divisors (94787307320).

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

74140561480 is a wasteful number, since it uses less digits than its factorization.

74140561480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23462293 (or 23462289 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 74140561480 in words is "seventy-four billion, one hundred forty million, five hundred sixty-one thousand, four hundred eighty".