20513471675 has 12 divisors (see below), whose sum is σ = 25438487160. Its totient is φ = 16409627520.

The previous prime is 20513471669. The next prime is 20513471701. The reversal of 20513471675 is 57617431502.

It is not a de Polignac number, because 20513471675 - 2⁴ = 20513471659 is a prime.

It is a super-2 number, since 2×20513471675² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 642899 + ... + 674051.

It is an arithmetic number, because the mean of its divisors is an integer number (2119873930).

Almost surely, 2^20513471675 is an apocalyptic number.

20513471675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20513471675 is a deficient number, since it is larger than the sum of its proper divisors (4925015485).

20513471675 is a wasteful number, since it uses less digits than its factorization.

20513471675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57502 (or 57497 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 20513471675 in words is "twenty billion, five hundred thirteen million, four hundred seventy-one thousand, six hundred seventy-five".