23420431172636 has 24 divisors (see below), whose sum is σ = 43689012192000. Its totient is φ = 10953459479664.

The previous prime is 23420431172609. The next prime is 23420431172647. The reversal of 23420431172636 is 63627113402432.

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, 1950396326 + ... + 1950408333.

It is an arithmetic number, because the mean of its divisors is an integer number (1820375508000).

Almost surely, 2^{23420431172636} is an apocalyptic number.

It is an amenable number.

23420431172636 is a deficient number, since it is larger than the sum of its proper divisors (20268581019364).

23420431172636 is a wasteful number, since it uses less digits than its factorization.

23420431172636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900804761 (or 3900804759 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 44.

The spelling of 23420431172636 in words is "twenty-three trillion, four hundred twenty billion, four hundred thirty-one million, one hundred seventy-two thousand, six hundred thirty-six".