351687033681 has 8 divisors (see below), whose sum is σ = 469812636000. Its totient is φ = 234009726912.

The previous prime is 351687033619. The next prime is 351687033683. The reversal of 351687033681 is 186330786153.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 351687033681 - 2¹⁰ = 351687032657 is a prime.

It is a super-2 number, since 2×351687033681² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (351687033683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112072056 + ... + 112075193.

It is an arithmetic number, because the mean of its divisors is an integer number (58726579500).

Almost surely, 2^351687033681 is an apocalyptic number.

It is an amenable number.

351687033681 is a deficient number, since it is larger than the sum of its proper divisors (118125602319).

351687033681 is a wasteful number, since it uses less digits than its factorization.

351687033681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224147775.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 351687033681 in words is "three hundred fifty-one billion, six hundred eighty-seven million, thirty-three thousand, six hundred eighty-one".