51586233951 has 16 divisors (see below), whose sum is σ = 82025316864. Its totient is φ = 28196202144.

The previous prime is 51586233949. The next prime is 51586233973. The reversal of 51586233951 is 15933268515.

It is a happy number.

It is not a de Polignac number, because 51586233951 - 2¹ = 51586233949 is a prime.

It is a super-2 number, since 2×51586233951² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51586233951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51586233901) 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, 53401416 + ... + 53402381.

It is an arithmetic number, because the mean of its divisors is an integer number (5126582304).

Almost surely, 2^51586233951 is an apocalyptic number.

51586233951 is a deficient number, since it is larger than the sum of its proper divisors (30439082913).

51586233951 is a wasteful number, since it uses less digits than its factorization.

51586233951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106803830.

The product of its digits is 972000, while the sum is 48.

The spelling of 51586233951 in words is "fifty-one billion, five hundred eighty-six million, two hundred thirty-three thousand, nine hundred fifty-one".