51582687679 has 8 divisors (see below), whose sum is σ = 52286176800. Its totient is φ = 50883096576.

The previous prime is 51582687661. The next prime is 51582687731. The reversal of 51582687679 is 97678628515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51582687679 - 2²⁷ = 51448469951 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51582687679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51582687649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 947854 + ... + 1000795.

It is an arithmetic number, because the mean of its divisors is an integer number (6535772100).

Almost surely, 2^51582687679 is an apocalyptic number.

51582687679 is a deficient number, since it is larger than the sum of its proper divisors (703489121).

51582687679 is a wasteful number, since it uses less digits than its factorization.

51582687679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949009.

The product of its digits is 50803200, while the sum is 64.

The spelling of 51582687679 in words is "fifty-one billion, five hundred eighty-two million, six hundred eighty-seven thousand, six hundred seventy-nine".