23173810464440 has 32 divisors (see below), whose sum is σ = 52678610394480. Its totient is φ = 9173962079232.

The previous prime is 23173810464439. The next prime is 23173810464547. The reversal of 23173810464440 is 4446401837132.

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 7 ways as a sum of consecutive naturals, for example, 2986311902 + ... + 2986319661.

Almost surely, 2^{23173810464440} is an apocalyptic number.

23173810464440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23173810464440 is an abundant number, since it is smaller than the sum of its proper divisors (29504799930040).

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

23173810464440 is a wasteful number, since it uses less digits than its factorization.

23173810464440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5972631671 (or 5972631667 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 47.

The spelling of 23173810464440 in words is "twenty-three trillion, one hundred seventy-three billion, eight hundred ten million, four hundred sixty-four thousand, four hundred forty".