20192919200912 has 40 divisors (see below), whose sum is σ = 40456815836160. Its totient is φ = 9753595395840.

The previous prime is 20192919200897. The next prime is 20192919200953. The reversal of 20192919200912 is 21900291929102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35492408 + ... + 36056855.

It is an arithmetic number, because the mean of its divisors is an integer number (1011420395904).

Almost surely, 2^{20192919200912} is an apocalyptic number.

It is an amenable number.

20192919200912 is an abundant number, since it is smaller than the sum of its proper divisors (20263896635248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20192919200912 is a wasteful number, since it uses less digits than its factorization.

20192919200912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71549871 (or 71549865 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 47.

The spelling of 20192919200912 in words is "twenty trillion, one hundred ninety-two billion, nine hundred nineteen million, two hundred thousand, nine hundred twelve".