51370780875 has 64 divisors (see below), whose sum is σ = 88801090560. Its totient is φ = 26352480000.

The previous prime is 51370780819. The next prime is 51370780913. The reversal of 51370780875 is 57808707315.

It is not a de Polignac number, because 51370780875 - 2¹⁰ = 51370779851 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1068096 + ... + 1115154.

It is an arithmetic number, because the mean of its divisors is an integer number (1387517040).

Almost surely, 2^51370780875 is an apocalyptic number.

51370780875 is a deficient number, since it is larger than the sum of its proper divisors (37430309685).

51370780875 is a wasteful number, since it uses less digits than its factorization.

51370780875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47189 (or 47179 counting only the distinct ones).

The product of its (nonzero) digits is 1646400, while the sum is 51.

The spelling of 51370780875 in words is "fifty-one billion, three hundred seventy million, seven hundred eighty thousand, eight hundred seventy-five".