51202613504464 has 40 divisors (see below), whose sum is σ = 99240663191040. Its totient is φ = 25592121340800.

The previous prime is 51202613504437. The next prime is 51202613504489. The reversal of 51202613504464 is 46440531620215.

It is a self number, because there is not a number n which added to its sum of digits gives 51202613504464.

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, 605483017 + ... + 605567575.

It is an arithmetic number, because the mean of its divisors is an integer number (2481016579776).

Almost surely, 2^{51202613504464} is an apocalyptic number.

It is an amenable number.

51202613504464 is a deficient number, since it is larger than the sum of its proper divisors (48038049686576).

51202613504464 is a wasteful number, since it uses less digits than its factorization.

51202613504464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97699 (or 97693 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 51202613504464 in words is "fifty-one trillion, two hundred two billion, six hundred thirteen million, five hundred four thousand, four hundred sixty-four".