351773683681 has 24 divisors (see below), whose sum is σ = 416106493440. Its totient is φ = 296467516800.

The previous prime is 351773683649. The next prime is 351773683687. The reversal of 351773683681 is 186386377153.

It is not a de Polignac number, because 351773683681 - 2⁵ = 351773683649 is a prime.

It is a super-2 number, since 2×351773683681² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351773683687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 744376 + ... + 1121446.

It is an arithmetic number, because the mean of its divisors is an integer number (17337770560).

Almost surely, 2^351773683681 is an apocalyptic number.

It is an amenable number.

351773683681 is a deficient number, since it is larger than the sum of its proper divisors (64332809759).

351773683681 is a wasteful number, since it uses less digits than its factorization.

351773683681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377405 (or 377398 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 58.

The spelling of 351773683681 in words is "three hundred fifty-one billion, seven hundred seventy-three million, six hundred eighty-three thousand, six hundred eighty-one".