51310621262672 has 10 divisors (see below), whose sum is σ = 99414328696458. Its totient is φ = 25655310631328.

The previous prime is 51310621262647. The next prime is 51310621262687. The reversal of 51310621262672 is 27626212601315.

51310621262672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 25772314302736 + 25538306959936 = 5076644^2 + 5053544^2 .

It is a super-2 number, since 2×51310621262672² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1603456914443 + ... + 1603456914474.

Almost surely, 2^{51310621262672} is an apocalyptic number.

It is an amenable number.

51310621262672 is a deficient number, since it is larger than the sum of its proper divisors (48103707433786).

51310621262672 is a wasteful number, since it uses less digits than its factorization.

51310621262672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3206913828925 (or 3206913828919 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

Adding to 51310621262672 its reverse (27626212601315), we get a palindrome (78936833863987).

The spelling of 51310621262672 in words is "fifty-one trillion, three hundred ten billion, six hundred twenty-one million, two hundred sixty-two thousand, six hundred seventy-two".