51634316364 has 48 divisors (see below), whose sum is σ = 121810197600. Its totient is φ = 17022415360.

The previous prime is 51634316353. The next prime is 51634316431. The reversal of 51634316364 is 46361343615.

It is a super-2 number, since 2×51634316364² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354634 + ... + 478574.

It is an arithmetic number, because the mean of its divisors is an integer number (2537712450).

Almost surely, 2^51634316364 is an apocalyptic number.

It is an amenable number.

51634316364 is an abundant number, since it is smaller than the sum of its proper divisors (70175881236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51634316364 is a wasteful number, since it uses less digits than its factorization.

51634316364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124330 (or 124328 counting only the distinct ones).

The product of its digits is 466560, while the sum is 42.

Adding to 51634316364 its reverse (46361343615), we get a palindrome (97995659979).

The spelling of 51634316364 in words is "fifty-one billion, six hundred thirty-four million, three hundred sixteen thousand, three hundred sixty-four".