51751776631 has 8 divisors (see below), whose sum is σ = 52472471744. Its totient is φ = 51031399680.

The previous prime is 51751776617. The next prime is 51751776647. The reversal of 51751776631 is 13667715715.

51751776631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51751776631 - 2⁹ = 51751776119 is a prime.

It is a super-2 number, since 2×51751776631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51751773631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257935 + ... + 412351.

It is an arithmetic number, because the mean of its divisors is an integer number (6559058968).

Almost surely, 2^51751776631 is an apocalyptic number.

51751776631 is a deficient number, since it is larger than the sum of its proper divisors (720695113).

51751776631 is a wasteful number, since it uses less digits than its factorization.

51751776631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159081.

The product of its digits is 926100, while the sum is 49.

The spelling of 51751776631 in words is "fifty-one billion, seven hundred fifty-one million, seven hundred seventy-six thousand, six hundred thirty-one".