19604638605 has 8 divisors (see below), whose sum is σ = 31367421792. Its totient is φ = 10455807248.

The previous prime is 19604638579. The next prime is 19604638693. The reversal of 19604638605 is 50683640691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19604638605 - 2⁶ = 19604638541 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653487939 + ... + 653487968.

It is an arithmetic number, because the mean of its divisors is an integer number (3920927724).

Almost surely, 2^19604638605 is an apocalyptic number.

19604638605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19604638605 is a deficient number, since it is larger than the sum of its proper divisors (11762783187).

19604638605 is a wasteful number, since it uses less digits than its factorization.

19604638605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306975915.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 19604638605 in words is "nineteen billion, six hundred four million, six hundred thirty-eight thousand, six hundred five".