23638563642 has 8 divisors (see below), whose sum is σ = 47277127296. Its totient is φ = 7879521212.

The previous prime is 23638563587. The next prime is 23638563647. The reversal of 23638563642 is 24636583632.

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

23638563642 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 23638563591 and 23638563600.

It is not an unprimeable number, because it can be changed into a prime (23638563647) 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, 1969880298 + ... + 1969880309.

It is an arithmetic number, because the mean of its divisors is an integer number (5909640912).

Almost surely, 2^23638563642 is an apocalyptic number.

23638563642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23638563642 is a wasteful number, since it uses less digits than its factorization.

23638563642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939760612.

The product of its digits is 3732480, while the sum is 48.

The spelling of 23638563642 in words is "twenty-three billion, six hundred thirty-eight million, five hundred sixty-three thousand, six hundred forty-two".