20347474402 has 24 divisors (see below), whose sum is σ = 31890597120. Its totient is φ = 9726726840.

The previous prime is 20347474391. The next prime is 20347474429. The reversal of 20347474402 is 20447474302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 403299 + ... + 450937.

It is an arithmetic number, because the mean of its divisors is an integer number (1328774880).

Almost surely, 2^20347474402 is an apocalyptic number.

20347474402 is a deficient number, since it is larger than the sum of its proper divisors (11543122718).

20347474402 is an equidigital number, since it uses as much as digits as its factorization.

20347474402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47838 (or 47755 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 37.

The spelling of 20347474402 in words is "twenty billion, three hundred forty-seven million, four hundred seventy-four thousand, four hundred two".