23826857784 has 32 divisors (see below), whose sum is σ = 59712810000. Its totient is φ = 7922863872.

The previous prime is 23826857779. The next prime is 23826857801. The reversal of 23826857784 is 48775862832.

It is a super-2 number, since 2×23826857784² (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, 1203859 + ... + 1223490.

Almost surely, 2^23826857784 is an apocalyptic number.

23826857784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23826857784 is an abundant number, since it is smaller than the sum of its proper divisors (35885952216).

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

23826857784 is a wasteful number, since it uses less digits than its factorization.

23826857784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427767 (or 2427763 counting only the distinct ones).

The product of its digits is 36126720, while the sum is 60.

The spelling of 23826857784 in words is "twenty-three billion, eight hundred twenty-six million, eight hundred fifty-seven thousand, seven hundred eighty-four".