19465974904 has 8 divisors (see below), whose sum is σ = 36498702960. Its totient is φ = 9732987448.

The previous prime is 19465974889. The next prime is 19465974907. The reversal of 19465974904 is 40947956491.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19465974907) 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 as a sum of consecutive naturals, namely, 1216623424 + ... + 1216623439.

It is an arithmetic number, because the mean of its divisors is an integer number (4562337870).

Almost surely, 2^19465974904 is an apocalyptic number.

It is an amenable number.

19465974904 is a deficient number, since it is larger than the sum of its proper divisors (17032728056).

19465974904 is a wasteful number, since it uses less digits than its factorization.

19465974904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2433246869 (or 2433246865 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 19465974904 in words is "nineteen billion, four hundred sixty-five million, nine hundred seventy-four thousand, nine hundred four".