23628969438 has 16 divisors (see below), whose sum is σ = 47460765456. Its totient is φ = 7842518720.

The previous prime is 23628969433. The next prime is 23628969461. The reversal of 23628969438 is 83496982632.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23628969433) 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, 8449593 + ... + 8452388.

It is an arithmetic number, because the mean of its divisors is an integer number (2966297841).

Almost surely, 2^23628969438 is an apocalyptic number.

23628969438 is an abundant number, since it is smaller than the sum of its proper divisors (23831796018).

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

23628969438 is a wasteful number, since it uses less digits than its factorization.

23628969438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16902219.

The product of its digits is 26873856, while the sum is 60.

The spelling of 23628969438 in words is "twenty-three billion, six hundred twenty-eight million, nine hundred sixty-nine thousand, four hundred thirty-eight".