351131007889 has 4 divisors (see below), whose sum is σ = 351133542180. Its totient is φ = 351128473600.

The previous prime is 351131007827. The next prime is 351131007947. The reversal of 351131007889 is 988700131153.

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 341505828225 + 9625179664 = 584385^2 + 98108^2 .

It is a cyclic number.

It is not a de Polignac number, because 351131007889 - 2³³ = 342541073297 is a prime.

It is a super-2 number, since 2×351131007889² (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 (351131007089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1046512 + ... + 1340689.

It is an arithmetic number, because the mean of its divisors is an integer number (87783385545).

Almost surely, 2^351131007889 is an apocalyptic number.

It is an amenable number.

351131007889 is a deficient number, since it is larger than the sum of its proper divisors (2534291).

351131007889 is a wasteful number, since it uses less digits than its factorization.

351131007889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2534290.

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 351131007889 in words is "three hundred fifty-one billion, one hundred thirty-one million, seven thousand, eight hundred eighty-nine".