351688134861 has 24 divisors (see below), whose sum is σ = 581356655360. Its totient is φ = 200690454816.

The previous prime is 351688134851. The next prime is 351688134871. The reversal of 351688134861 is 168431886153.

It is a happy number.

351688134861 is a `hidden beast` number, since 3 + 5 + 168 + 81 + 348 + 61 = 666.

It is an interprime number because it is at equal distance from previous prime (351688134851) and next prime (351688134871).

It is not a de Polignac number, because 351688134861 - 2⁵ = 351688134829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 351688134798 and 351688134807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351688134851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3761701 + ... + 3854058.

Almost surely, 2^351688134861 is an apocalyptic number.

It is an amenable number.

351688134861 is a deficient number, since it is larger than the sum of its proper divisors (229668520499).

351688134861 is a wasteful number, since it uses less digits than its factorization.

351688134861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7616505 (or 7616502 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The spelling of 351688134861 in words is "three hundred fifty-one billion, six hundred eighty-eight million, one hundred thirty-four thousand, eight hundred sixty-one".