20106087892 has 12 divisors (see below), whose sum is σ = 38384349696. Its totient is φ = 9139130840.

The previous prime is 20106087889. The next prime is 20106087913. The reversal of 20106087892 is 29878060102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228478228 + ... + 228478315.

It is an arithmetic number, because the mean of its divisors is an integer number (3198695808).

Almost surely, 2^20106087892 is an apocalyptic number.

20106087892 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20106087892 is a deficient number, since it is larger than the sum of its proper divisors (18278261804).

20106087892 is a wasteful number, since it uses less digits than its factorization.

20106087892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456956558 (or 456956556 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 20106087892 in words is "twenty billion, one hundred six million, eighty-seven thousand, eight hundred ninety-two".