19105294992 has 80 divisors (see below), whose sum is σ = 57470428800. Its totient is φ = 5355657216.

The previous prime is 19105294987. The next prime is 19105294993. The reversal of 19105294992 is 29949250191.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (19105294993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518617 + ... + 554232.

It is an arithmetic number, because the mean of its divisors is an integer number (718380360).

Almost surely, 2^19105294992 is an apocalyptic number.

19105294992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19105294992 is an abundant number, since it is smaller than the sum of its proper divisors (38365133808).

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

19105294992 is a wasteful number, since it uses less digits than its factorization.

19105294992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072920 (or 1072914 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 51.

The spelling of 19105294992 in words is "nineteen billion, one hundred five million, two hundred ninety-four thousand, nine hundred ninety-two".