19416991604 has 12 divisors (see below), whose sum is σ = 33998762784. Its totient is φ = 9703059384.

The previous prime is 19416991597. The next prime is 19416991663. The reversal of 19416991604 is 40619961491.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1351064 + ... + 1365359.

It is an arithmetic number, because the mean of its divisors is an integer number (2833230232).

Almost surely, 2^19416991604 is an apocalyptic number.

It is an amenable number.

19416991604 is a deficient number, since it is larger than the sum of its proper divisors (14581771180).

19416991604 is a wasteful number, since it uses less digits than its factorization.

19416991604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718214 (or 2718212 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 50.

The spelling of 19416991604 in words is "nineteen billion, four hundred sixteen million, nine hundred ninety-one thousand, six hundred four".