51836079539 has 4 divisors (see below), whose sum is σ = 52104660456. Its totient is φ = 51567498624.

The previous prime is 51836079481. The next prime is 51836079541. The reversal of 51836079539 is 93597063815.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51836079539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51836072539) 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 3 ways as a sum of consecutive naturals, for example, 134290169 + ... + 134290554.

It is an arithmetic number, because the mean of its divisors is an integer number (13026165114).

Almost surely, 2^51836079539 is an apocalyptic number.

51836079539 is a deficient number, since it is larger than the sum of its proper divisors (268580917).

51836079539 is a wasteful number, since it uses less digits than its factorization.

51836079539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268580916.

The product of its (nonzero) digits is 6123600, while the sum is 56.

The spelling of 51836079539 in words is "fifty-one billion, eight hundred thirty-six million, seventy-nine thousand, five hundred thirty-nine".