20137750474 has 16 divisors (see below), whose sum is σ = 31337740800. Its totient is φ = 9695101680.

The previous prime is 20137750447. The next prime is 20137750511. The reversal of 20137750474 is 47405773102.

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, 803749 + ... + 828424.

It is an arithmetic number, because the mean of its divisors is an integer number (1958608800).

Almost surely, 2^20137750474 is an apocalyptic number.

20137750474 is a deficient number, since it is larger than the sum of its proper divisors (11199990326).

20137750474 is a wasteful number, since it uses less digits than its factorization.

20137750474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632405.

The product of its (nonzero) digits is 164640, while the sum is 40.

The spelling of 20137750474 in words is "twenty billion, one hundred thirty-seven million, seven hundred fifty thousand, four hundred seventy-four".