51456535341631 has 6 divisors (see below), whose sum is σ = 59857602336240. Its totient is φ = 44105601721356.

The previous prime is 51456535341551. The next prime is 51456535341703. The reversal of 51456535341631 is 13614353565415.

51456535341631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51456535341631 - 2¹³ = 51456535333439 is a prime.

It is a super-2 number, since 2×51456535341631² (a number of 28 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 (51456535341331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 525066687111 + ... + 525066687208.

It is an arithmetic number, because the mean of its divisors is an integer number (9976267056040).

Almost surely, 2^{51456535341631} is an apocalyptic number.

51456535341631 is a deficient number, since it is larger than the sum of its proper divisors (8401066994609).

51456535341631 is a wasteful number, since it uses less digits than its factorization.

51456535341631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050133374333 (or 1050133374326 counting only the distinct ones).

The product of its digits is 9720000, while the sum is 52.

The spelling of 51456535341631 in words is "fifty-one trillion, four hundred fifty-six billion, five hundred thirty-five million, three hundred forty-one thousand, six hundred thirty-one".