19804012674 has 32 divisors (see below), whose sum is σ = 42064681536. Its totient is φ = 6194242560.

The previous prime is 19804012649. The next prime is 19804012687. The reversal of 19804012674 is 47621040891.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259527 + ... + 327050.

It is an arithmetic number, because the mean of its divisors is an integer number (1314521298).

Almost surely, 2^19804012674 is an apocalyptic number.

19804012674 is an abundant number, since it is smaller than the sum of its proper divisors (22260668862).

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

19804012674 is a wasteful number, since it uses less digits than its factorization.

19804012674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586930.

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 19804012674 in words is "nineteen billion, eight hundred four million, twelve thousand, six hundred seventy-four".