51352670216544 has 48 divisors (see below), whose sum is σ = 134812064475648. Its totient is φ = 17116121163392.

The previous prime is 51352670216479. The next prime is 51352670216563. The reversal of 51352670216544 is 44561207625315.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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, 21279912 + ... + 23569895.

It is an arithmetic number, because the mean of its divisors is an integer number (2808584676576).

Almost surely, 2^{51352670216544} is an apocalyptic number.

It is an amenable number.

51352670216544 is an abundant number, since it is smaller than the sum of its proper divisors (83459394259104).

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

51352670216544 is a wasteful number, since it uses less digits than its factorization.

51352670216544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44861747 (or 44861739 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 51.

The spelling of 51352670216544 in words is "fifty-one trillion, three hundred fifty-two billion, six hundred seventy million, two hundred sixteen thousand, five hundred forty-four".