19427986596 has 24 divisors (see below), whose sum is σ = 45339485184. Its totient is φ = 6474921760.

The previous prime is 19427986579. The next prime is 19427986607. The reversal of 19427986596 is 69568972491.

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, 57060 + ... + 205211.

It is an arithmetic number, because the mean of its divisors is an integer number (1889145216).

Almost surely, 2^19427986596 is an apocalyptic number.

It is an amenable number.

19427986596 is an abundant number, since it is smaller than the sum of its proper divisors (25911498588).

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

19427986596 is a wasteful number, since it uses less digits than its factorization.

19427986596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268451 (or 268449 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 66.

It can be divided in two parts, 194279 and 86596, that added together give a triangular number (280875 = T₇₄₉).

The spelling of 19427986596 in words is "nineteen billion, four hundred twenty-seven million, nine hundred eighty-six thousand, five hundred ninety-six".