51306584240461 has 16 divisors (see below), whose sum is σ = 57776708026368. Its totient is φ = 45137461647600.

The previous prime is 51306584240333. The next prime is 51306584240491. The reversal of 51306584240461 is 16404248560315.

It is a cyclic number.

It is not a de Polignac number, because 51306584240461 - 2⁷ = 51306584240333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51306584240491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63971016 + ... + 64768078.

It is an arithmetic number, because the mean of its divisors is an integer number (3611044251648).

Almost surely, 2^{51306584240461} is an apocalyptic number.

It is an amenable number.

51306584240461 is a deficient number, since it is larger than the sum of its proper divisors (6470123785907).

51306584240461 is a wasteful number, since it uses less digits than its factorization.

51306584240461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985872.

The product of its (nonzero) digits is 2764800, while the sum is 49.

The spelling of 51306584240461 in words is "fifty-one trillion, three hundred six billion, five hundred eighty-four million, two hundred forty thousand, four hundred sixty-one".