51507636848 has 20 divisors (see below), whose sum is σ = 100082005800. Its totient is φ = 25680022464.

The previous prime is 51507636797. The next prime is 51507636893. The reversal of 51507636848 is 84863670515.

51507636848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51507636848.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4606490 + ... + 4617657.

It is an arithmetic number, because the mean of its divisors is an integer number (5004100290).

Almost surely, 2^51507636848 is an apocalyptic number.

It is an amenable number.

51507636848 is a deficient number, since it is larger than the sum of its proper divisors (48574368952).

51507636848 is a wasteful number, since it uses less digits than its factorization.

51507636848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9224504 (or 9224498 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 51507636848 in words is "fifty-one billion, five hundred seven million, six hundred thirty-six thousand, eight hundred forty-eight".