19119120012 has 48 divisors (see below), whose sum is σ = 49575546720. Its totient is φ = 6372081216.

The previous prime is 19119119993. The next prime is 19119120073. The reversal of 19119120012 is 21002191191.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1370818 + ... + 1384694.

It is an arithmetic number, because the mean of its divisors is an integer number (1032823890).

Almost surely, 2^19119120012 is an apocalyptic number.

19119120012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19119120012 is an abundant number, since it is smaller than the sum of its proper divisors (30456426708).

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

19119120012 is a wasteful number, since it uses less digits than its factorization.

19119120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26647 (or 26639 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The spelling of 19119120012 in words is "nineteen billion, one hundred nineteen million, one hundred twenty thousand, twelve".