51631061361602 has 8 divisors (see below), whose sum is σ = 77447429553216. Its totient is φ = 25815251510532.

The previous prime is 51631061361599. The next prime is 51631061361613. The reversal of 51631061361602 is 20616316013615.

51631061361602 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 self number, because there is not a number n which added to its sum of digits gives 51631061361602.

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 in 3 ways as a sum of consecutive naturals, for example, 139353878 + ... + 139723889.

It is an arithmetic number, because the mean of its divisors is an integer number (9680928694152).

Almost surely, 2^{51631061361602} is an apocalyptic number.

51631061361602 is a deficient number, since it is larger than the sum of its proper divisors (25816368191614).

51631061361602 is a wasteful number, since it uses less digits than its factorization.

51631061361602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279170272.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 51631061361602 in words is "fifty-one trillion, six hundred thirty-one billion, sixty-one million, three hundred sixty-one thousand, six hundred two".