19290911112 has 96 divisors (see below), whose sum is σ = 58536391680. Its totient is φ = 5687729280.

The previous prime is 19290911111. The next prime is 19290911153. The reversal of 19290911112 is 21111909291.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (19290911111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 299848 + ... + 358455.

It is an arithmetic number, because the mean of its divisors is an integer number (609754080).

Almost surely, 2^19290911112 is an apocalyptic number.

19290911112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19290911112 is an abundant number, since it is smaller than the sum of its proper divisors (39245480568).

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

19290911112 is a wasteful number, since it uses less digits than its factorization.

19290911112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658363 (or 658356 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 36.

The spelling of 19290911112 in words is "nineteen billion, two hundred ninety million, nine hundred eleven thousand, one hundred twelve".