51631354431202 has 16 divisors (see below), whose sum is σ = 95319423565632. Its totient is φ = 20425590763920.

The previous prime is 51631354431191. The next prime is 51631354431211. The reversal of 51631354431202 is 20213445313615.

It is a super-3 number, since 3×51631354431202³ (a number of 42 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141844380124 + ... + 141844380487.

It is an arithmetic number, because the mean of its divisors is an integer number (5957463972852).

Almost surely, 2^{51631354431202} is an apocalyptic number.

51631354431202 is a deficient number, since it is larger than the sum of its proper divisors (43688069134430).

51631354431202 is a wasteful number, since it uses less digits than its factorization.

51631354431202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283688760633.

The product of its (nonzero) digits is 259200, while the sum is 40.

Adding to 51631354431202 its reverse (20213445313615), we get a palindrome (71844799744817).

The spelling of 51631354431202 in words is "fifty-one trillion, six hundred thirty-one billion, three hundred fifty-four million, four hundred thirty-one thousand, two hundred two".