51215188593 has 16 divisors (see below), whose sum is σ = 68926980096. Its totient is φ = 33824777040.

The previous prime is 51215188543. The next prime is 51215188621. The reversal of 51215188593 is 39588151215.

It is not a de Polignac number, because 51215188593 - 2¹⁷ = 51215057521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51215188543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16305 + ... + 320462.

It is an arithmetic number, because the mean of its divisors is an integer number (4307936256).

Almost surely, 2^51215188593 is an apocalyptic number.

It is an amenable number.

51215188593 is a deficient number, since it is larger than the sum of its proper divisors (17711791503).

51215188593 is a wasteful number, since it uses less digits than its factorization.

51215188593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337244.

The product of its digits is 432000, while the sum is 48.

The spelling of 51215188593 in words is "fifty-one billion, two hundred fifteen million, one hundred eighty-eight thousand, five hundred ninety-three".