51423044720128 has 40 divisors (see below), whose sum is σ = 103154999298120. Its totient is φ = 25609085952000.

The previous prime is 51423044720077. The next prime is 51423044720141. The reversal of 51423044720128 is 82102744032415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199942473 + ... + 200199496.

It is an arithmetic number, because the mean of its divisors is an integer number (2578874982453).

Almost surely, 2^{51423044720128} is an apocalyptic number.

It is an amenable number.

51423044720128 is an abundant number, since it is smaller than the sum of its proper divisors (51731954577992).

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

51423044720128 is an equidigital number, since it uses as much as digits as its factorization.

51423044720128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400142238 (or 400142222 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 43.

The spelling of 51423044720128 in words is "fifty-one trillion, four hundred twenty-three billion, forty-four million, seven hundred twenty thousand, one hundred twenty-eight".