51248712740 has 24 divisors (see below), whose sum is σ = 107730938112. Its totient is φ = 20478791520.

The previous prime is 51248712709. The next prime is 51248712751. The reversal of 51248712740 is 4721784215.

51248712740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1273034 + ... + 1312673.

It is an arithmetic number, because the mean of its divisors is an integer number (4488789088).

Almost surely, 2^51248712740 is an apocalyptic number.

It is an amenable number.

51248712740 is an abundant number, since it is smaller than the sum of its proper divisors (56482225372).

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

51248712740 is a wasteful number, since it uses less digits than its factorization.

51248712740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586707 (or 2586705 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The spelling of 51248712740 in words is "fifty-one billion, two hundred forty-eight million, seven hundred twelve thousand, seven hundred forty".