23132336638 has 16 divisors (see below), whose sum is σ = 36527915520. Its totient is φ = 10956470616.

The previous prime is 23132336627. The next prime is 23132336639. The reversal of 23132336638 is 83663323132.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23132336638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23132336639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 625245 + ... + 661207.

It is an arithmetic number, because the mean of its divisors is an integer number (2282994720).

Almost surely, 2^23132336638 is an apocalyptic number.

23132336638 is a deficient number, since it is larger than the sum of its proper divisors (13395578882).

23132336638 is a wasteful number, since it uses less digits than its factorization.

23132336638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52911.

The product of its digits is 279936, while the sum is 40.

The spelling of 23132336638 in words is "twenty-three billion, one hundred thirty-two million, three hundred thirty-six thousand, six hundred thirty-eight".