23149649251680 has 192 divisors, whose sum is σ = 83687437854720. Its totient is φ = 5269208684544.

The previous prime is 23149649251657. The next prime is 23149649251691. The reversal of 23149649251680 is 8615294694132.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13610719 + ... + 15216798.

It is an arithmetic number, because the mean of its divisors is an integer number (435872072160).

Almost surely, 2^{23149649251680} is an apocalyptic number.

23149649251680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23149649251680 is an abundant number, since it is smaller than the sum of its proper divisors (60537788603040).

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

23149649251680 is a wasteful number, since it uses less digits than its factorization.

23149649251680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28827781 (or 28827773 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 60.

The spelling of 23149649251680 in words is "twenty-three trillion, one hundred forty-nine billion, six hundred forty-nine million, two hundred fifty-one thousand, six hundred eighty".