23931009249040 has 40 divisors (see below), whose sum is σ = 55639938691008. Its totient is φ = 9572344828800.

The previous prime is 23931009248857. The next prime is 23931009249067. The reversal of 23931009249040 is 4094290013932.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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, 13591315 + ... + 15250765.

Almost surely, 2^{23931009249040} is an apocalyptic number.

23931009249040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23931009249040 is an abundant number, since it is smaller than the sum of its proper divisors (31708929441968).

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

23931009249040 is a wasteful number, since it uses less digits than its factorization.

23931009249040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839727 (or 1839721 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 23931009249040 in words is "twenty-three trillion, nine hundred thirty-one billion, nine million, two hundred forty-nine thousand, forty".