20146993892 has 12 divisors (see below), whose sum is σ = 35267847216. Its totient is φ = 10070466120.

The previous prime is 20146993877. The next prime is 20146993903. The reversal of 20146993892 is 29839964102.

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, 742718 + ... + 769365.

It is an arithmetic number, because the mean of its divisors is an integer number (2938987268).

Almost surely, 2^20146993892 is an apocalyptic number.

It is an amenable number.

20146993892 is a deficient number, since it is larger than the sum of its proper divisors (15120853324).

20146993892 is a wasteful number, since it uses less digits than its factorization.

20146993892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515418 (or 1515416 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 53.

The spelling of 20146993892 in words is "twenty billion, one hundred forty-six million, nine hundred ninety-three thousand, eight hundred ninety-two".