51680635260 has 24 divisors (see below), whose sum is σ = 144705778896. Its totient is φ = 13781502720.

The previous prime is 51680635247. The next prime is 51680635261. The reversal of 51680635260 is 6253608615.

It is a happy number.

51680635260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51680635261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430671901 + ... + 430672020.

It is an arithmetic number, because the mean of its divisors is an integer number (6029407454).

Almost surely, 2^51680635260 is an apocalyptic number.

It is an amenable number.

51680635260 is an abundant number, since it is smaller than the sum of its proper divisors (93025143636).

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

51680635260 is a wasteful number, since it uses less digits than its factorization.

51680635260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861343933 (or 861343931 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 51680635260 in words is "fifty-one billion, six hundred eighty million, six hundred thirty-five thousand, two hundred sixty".