19493822972 has 12 divisors (see below), whose sum is σ = 36738358776. Its totient is φ = 8997149040.

The previous prime is 19493822947. The next prime is 19493823001. The reversal of 19493822972 is 27922839491.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187440554 + ... + 187440657.

It is an arithmetic number, because the mean of its divisors is an integer number (3061529898).

Almost surely, 2^19493822972 is an apocalyptic number.

It is an amenable number.

19493822972 is a deficient number, since it is larger than the sum of its proper divisors (17244535804).

19493822972 is a wasteful number, since it uses less digits than its factorization.

19493822972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374881228 (or 374881226 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 56.

The spelling of 19493822972 in words is "nineteen billion, four hundred ninety-three million, eight hundred twenty-two thousand, nine hundred seventy-two".