19120001912 has 32 divisors (see below), whose sum is σ = 39272774400. Its totient is φ = 8654536800.

The previous prime is 19120001839. The next prime is 19120001917. The reversal of 19120001912 is 21910002191.

It is a super-2 number, since 2×19120001912² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19120001917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433514 + ... + 475577.

It is an arithmetic number, because the mean of its divisors is an integer number (1227274200).

Almost surely, 2^19120001912 is an apocalyptic number.

It is an amenable number.

19120001912 is an abundant number, since it is smaller than the sum of its proper divisors (20152772488).

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

19120001912 is a wasteful number, since it uses less digits than its factorization.

19120001912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909347 (or 909343 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 19120001912 in words is "nineteen billion, one hundred twenty million, one thousand, nine hundred twelve".