20513471674 has 16 divisors (see below), whose sum is σ = 30951970560. Its totient is φ = 10196225280.

The previous prime is 20513471669. The next prime is 20513471701. The reversal of 20513471674 is 47617431502.

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 7 ways as a sum of consecutive naturals, for example, 536989 + ... + 573919.

It is an arithmetic number, because the mean of its divisors is an integer number (1934498160).

Almost surely, 2^20513471674 is an apocalyptic number.

20513471674 is a deficient number, since it is larger than the sum of its proper divisors (10438498886).

20513471674 is a wasteful number, since it uses less digits than its factorization.

20513471674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38565.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 20513471674 in words is "twenty billion, five hundred thirteen million, four hundred seventy-one thousand, six hundred seventy-four".