51671144400784 has 10 divisors (see below), whose sum is σ = 100112842276550. Its totient is φ = 25835572200384.

The previous prime is 51671144400761. The next prime is 51671144400797. The reversal of 51671144400784 is 48700444117615.

It can be written as a sum of positive squares in only one way, i.e., 38012502423184 + 13658641977600 = 6165428^2 + 3695760^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1614723262509 + ... + 1614723262540.

It is an arithmetic number, because the mean of its divisors is an integer number (10011284227655).

Almost surely, 2^{51671144400784} is an apocalyptic number.

It is an amenable number.

51671144400784 is a deficient number, since it is larger than the sum of its proper divisors (48441697875766).

51671144400784 is a wasteful number, since it uses less digits than its factorization.

51671144400784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3229446525057 (or 3229446525051 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 52.

The spelling of 51671144400784 in words is "fifty-one trillion, six hundred seventy-one billion, one hundred forty-four million, four hundred thousand, seven hundred eighty-four".