19161974932 has 24 divisors (see below), whose sum is σ = 36331739136. Its totient is φ = 8807691648.

The previous prime is 19161974929. The next prime is 19161974933. The reversal of 19161974932 is 23947916191.

It is a self number, because there is not a number n which added to its sum of digits gives 19161974932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19161974933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3273748 + ... + 3279595.

It is an arithmetic number, because the mean of its divisors is an integer number (1513822464).

Almost surely, 2^19161974932 is an apocalyptic number.

It is an amenable number.

19161974932 is a deficient number, since it is larger than the sum of its proper divisors (17169764204).

19161974932 is a wasteful number, since it uses less digits than its factorization.

19161974932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6553407 (or 6553405 counting only the distinct ones).

The product of its digits is 734832, while the sum is 52.

The spelling of 19161974932 in words is "nineteen billion, one hundred sixty-one million, nine hundred seventy-four thousand, nine hundred thirty-two".