19362138564 has 12 divisors (see below), whose sum is σ = 45178323344. Its totient is φ = 6454046184.

The previous prime is 19362138449. The next prime is 19362138569. The reversal of 19362138564 is 46583126391.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (19362138569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806755762 + ... + 806755785.

Almost surely, 2^19362138564 is an apocalyptic number.

It is an amenable number.

19362138564 is an abundant number, since it is smaller than the sum of its proper divisors (25816184780).

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

19362138564 is a wasteful number, since it uses less digits than its factorization.

19362138564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613511554 (or 1613511552 counting only the distinct ones).

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

The spelling of 19362138564 in words is "nineteen billion, three hundred sixty-two million, one hundred thirty-eight thousand, five hundred sixty-four".