351132383681 has 4 divisors (see below), whose sum is σ = 351359068500. Its totient is φ = 350905698864.

The previous prime is 351132383663. The next prime is 351132383747. The reversal of 351132383681 is 186383231153.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148006400656 + 203125983025 = 384716^2 + 450695^2 .

It is a cyclic number.

It is not a de Polignac number, because 351132383681 - 2⁶ = 351132383617 is a prime.

It is a super-2 number, since 2×351132383681² (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 (351132313681) 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 3 ways as a sum of consecutive naturals, for example, 113340086 + ... + 113343183.

It is an arithmetic number, because the mean of its divisors is an integer number (87839767125).

Almost surely, 2^351132383681 is an apocalyptic number.

It is an amenable number.

351132383681 is a deficient number, since it is larger than the sum of its proper divisors (226684819).

351132383681 is a wasteful number, since it uses less digits than its factorization.

351132383681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226684818.

The product of its digits is 311040, while the sum is 44.

The spelling of 351132383681 in words is "three hundred fifty-one billion, one hundred thirty-two million, three hundred eighty-three thousand, six hundred eighty-one".