20317734474 has 64 divisors (see below), whose sum is σ = 43314585600. Its totient is φ = 6335433792.

The previous prime is 20317734461. The next prime is 20317734487. The reversal of 20317734474 is 47443771302.

It is an interprime number because it is at equal distance from previous prime (20317734461) and next prime (20317734487).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4377447 + ... + 4382085.

It is an arithmetic number, because the mean of its divisors is an integer number (676790400).

Almost surely, 2^20317734474 is an apocalyptic number.

20317734474 is an abundant number, since it is smaller than the sum of its proper divisors (22996851126).

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

20317734474 is a wasteful number, since it uses less digits than its factorization.

20317734474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5139.

The product of its (nonzero) digits is 395136, while the sum is 42.

The spelling of 20317734474 in words is "twenty billion, three hundred seventeen million, seven hundred thirty-four thousand, four hundred seventy-four".