51711466126440 has 64 divisors (see below), whose sum is σ = 160483860403200. Its totient is φ = 13314216564992.

The previous prime is 51711466126427. The next prime is 51711466126447. The reversal of 51711466126440 is 4462166411715.

It is a self number, because there is not a number n which added to its sum of digits gives 51711466126440.

It is not an unprimeable number, because it can be changed into a prime (51711466126447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7429804872 + ... + 7429811831.

It is an arithmetic number, because the mean of its divisors is an integer number (2507560318800).

Almost surely, 2^{51711466126440} is an apocalyptic number.

It is an amenable number.

51711466126440 is an abundant number, since it is smaller than the sum of its proper divisors (108772394276760).

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

51711466126440 is a wasteful number, since it uses less digits than its factorization.

51711466126440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14859616746 (or 14859616742 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 51711466126440 in words is "fifty-one trillion, seven hundred eleven billion, four hundred sixty-six million, one hundred twenty-six thousand, four hundred forty".