19357944832 has 44 divisors (see below), whose sum is σ = 38728093680. Its totient is φ = 9671192576.

The previous prime is 19357944791. The next prime is 19357944847. The reversal of 19357944832 is 23844975391.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392894 + ... + 1406722.

Almost surely, 2^19357944832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19357944832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19364046840).

19357944832 is an abundant number, since it is smaller than the sum of its proper divisors (19370148848).

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

19357944832 is a wasteful number, since it uses less digits than its factorization.

19357944832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15216 (or 15198 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 55.

The spelling of 19357944832 in words is "nineteen billion, three hundred fifty-seven million, nine hundred forty-four thousand, eight hundred thirty-two".