51535580400187 has 12 divisors (see below), whose sum is σ = 55840412873280. Its totient is φ = 47540946536928.

The previous prime is 51535580400137. The next prime is 51535580400233. The reversal of 51535580400187 is 78100408553515.

It is a de Polignac number, because none of the positive numbers 2^k-51535580400187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51535580400137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97037112 + ... + 97566757.

It is an arithmetic number, because the mean of its divisors is an integer number (4653367739440).

Almost surely, 2^{51535580400187} is an apocalyptic number.

51535580400187 is a deficient number, since it is larger than the sum of its proper divisors (4304832473093).

51535580400187 is a wasteful number, since it uses less digits than its factorization.

51535580400187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194605462 (or 194605449 counting only the distinct ones).

The product of its (nonzero) digits is 3360000, while the sum is 52.

The spelling of 51535580400187 in words is "fifty-one trillion, five hundred thirty-five billion, five hundred eighty million, four hundred thousand, one hundred eighty-seven".