20475192475 has 6 divisors (see below), whose sum is σ = 25389238700. Its totient is φ = 16380153960.

The previous prime is 20475192431. The next prime is 20475192533. The reversal of 20475192475 is 57429157402.

It is not a de Polignac number, because 20475192475 - 2⁷ = 20475192347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 409503825 + ... + 409503874.

Almost surely, 2^20475192475 is an apocalyptic number.

20475192475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20475192475 is a deficient number, since it is larger than the sum of its proper divisors (4914046225).

20475192475 is an equidigital number, since it uses as much as digits as its factorization.

20475192475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819007709 (or 819007704 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 20475192475 in words is "twenty billion, four hundred seventy-five million, one hundred ninety-two thousand, four hundred seventy-five".