19764045192 has 32 divisors (see below), whose sum is σ = 49705992000. Its totient is φ = 6548564544.

The previous prime is 19764045179. The next prime is 19764045211. The reversal of 19764045192 is 29154046791.

It is a happy number.

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, 2461567 + ... + 2469582.

It is an arithmetic number, because the mean of its divisors is an integer number (1553312250).

Almost surely, 2^19764045192 is an apocalyptic number.

19764045192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19764045192 is an abundant number, since it is smaller than the sum of its proper divisors (29941946808).

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

19764045192 is a wasteful number, since it uses less digits than its factorization.

19764045192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4931325 (or 4931321 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 19764045192 in words is "nineteen billion, seven hundred sixty-four million, forty-five thousand, one hundred ninety-two".