19406536896 has 28 divisors (see below), whose sum is σ = 51346462712. Its totient is φ = 6468845568.

The previous prime is 19406536871. The next prime is 19406536913. The reversal of 19406536896 is 69863560491.

It is a super-2 number, since 2×19406536896² (a number of 21 digits) contains 22 as substring.

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, 50537665 + ... + 50538048.

Almost surely, 2^19406536896 is an apocalyptic number.

19406536896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19406536896 is an abundant number, since it is smaller than the sum of its proper divisors (31939925816).

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

19406536896 is a wasteful number, since it uses less digits than its factorization.

19406536896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101075728 (or 101075718 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 57.

The spelling of 19406536896 in words is "nineteen billion, four hundred six million, five hundred thirty-six thousand, eight hundred ninety-six".