19604337972 has 12 divisors (see below), whose sum is σ = 45743455296. Its totient is φ = 6534779320.

The previous prime is 19604337971. The next prime is 19604338007. The reversal of 19604337972 is 27973340691.

It is a tau number, because it is divible by the number of its divisors (12).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19604337971) 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 3 ways as a sum of consecutive naturals, for example, 816847404 + ... + 816847427.

It is an arithmetic number, because the mean of its divisors is an integer number (3811954608).

Almost surely, 2^19604337972 is an apocalyptic number.

19604337972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19604337972 is an abundant number, since it is smaller than the sum of its proper divisors (26139117324).

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

19604337972 is a wasteful number, since it uses less digits than its factorization.

19604337972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633694838 (or 1633694836 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 51.

The spelling of 19604337972 in words is "nineteen billion, six hundred four million, three hundred thirty-seven thousand, nine hundred seventy-two".