23818938428 has 24 divisors (see below), whose sum is σ = 42579432000. Its totient is φ = 11653498688.

The previous prime is 23818938389. The next prime is 23818938433. The reversal of 23818938428 is 82483981832.

It is a super-2 number, since 2×23818938428² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 1054598 + ... + 1076946.

It is an arithmetic number, because the mean of its divisors is an integer number (1774143000).

Almost surely, 2^23818938428 is an apocalyptic number.

It is an amenable number.

23818938428 is a deficient number, since it is larger than the sum of its proper divisors (18760493572).

23818938428 is a wasteful number, since it uses less digits than its factorization.

23818938428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28069 (or 28067 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 56.

The spelling of 23818938428 in words is "twenty-three billion, eight hundred eighteen million, nine hundred thirty-eight thousand, four hundred twenty-eight".