20188670975 has 12 divisors (see below), whose sum is σ = 27309766200. Its totient is φ = 14682669600.

The previous prime is 20188670927. The next prime is 20188670987. The reversal of 20188670975 is 57907688102.

It is not a de Polignac number, because 20188670975 - 2³⁰ = 19114929151 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36706400 + ... + 36706949.

It is an arithmetic number, because the mean of its divisors is an integer number (2275813850).

Almost surely, 2^20188670975 is an apocalyptic number.

20188670975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20188670975 is a deficient number, since it is larger than the sum of its proper divisors (7121095225).

20188670975 is a wasteful number, since it uses less digits than its factorization.

20188670975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73413370 (or 73413365 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 53.

The spelling of 20188670975 in words is "twenty billion, one hundred eighty-eight million, six hundred seventy thousand, nine hundred seventy-five".