23931862540 has 48 divisors (see below), whose sum is σ = 53729911872. Its totient is φ = 8922157056.

The previous prime is 23931862529. The next prime is 23931862543. The reversal of 23931862540 is 4526813932.

It is not an unprimeable number, because it can be changed into a prime (23931862543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306669 + ... + 376708.

It is an arithmetic number, because the mean of its divisors is an integer number (1119373164).

Almost surely, 2^23931862540 is an apocalyptic number.

23931862540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23931862540 is an abundant number, since it is smaller than the sum of its proper divisors (29798049332).

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

23931862540 is a wasteful number, since it uses less digits than its factorization.

23931862540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683506 (or 683504 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 23931862540 in words is "twenty-three billion, nine hundred thirty-one million, eight hundred sixty-two thousand, five hundred forty".