51761144143560 has 64 divisors (see below), whose sum is σ = 155283907680000. Its totient is φ = 13802929527296.

The previous prime is 51761144143537. The next prime is 51761144143699. The reversal of 51761144143560 is 6534144116715.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70933441 + ... + 71659439.

It is an arithmetic number, because the mean of its divisors is an integer number (2426311057500).

Almost surely, 2^{51761144143560} is an apocalyptic number.

It is an amenable number.

51761144143560 is an abundant number, since it is smaller than the sum of its proper divisors (103522763536440).

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

51761144143560 is a wasteful number, since it uses less digits than its factorization.

51761144143560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320150 (or 1320146 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 51761144143560 in words is "fifty-one trillion, seven hundred sixty-one billion, one hundred forty-four million, one hundred forty-three thousand, five hundred sixty".