351897491617 has 16 divisors (see below), whose sum is σ = 403799334400. Its totient is φ = 300405526848.

The previous prime is 351897491593. The next prime is 351897491639. The reversal of 351897491617 is 716194798153.

It is not a de Polignac number, because 351897491617 - 2²⁷ = 351763273889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (351897491417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1854259 + ... + 2035207.

It is an arithmetic number, because the mean of its divisors is an integer number (25237458400).

Almost surely, 2^351897491617 is an apocalyptic number.

It is an amenable number.

351897491617 is a deficient number, since it is larger than the sum of its proper divisors (51901842783).

351897491617 is a wasteful number, since it uses less digits than its factorization.

351897491617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182080.

The product of its digits is 11430720, while the sum is 61.

The spelling of 351897491617 in words is "three hundred fifty-one billion, eight hundred ninety-seven million, four hundred ninety-one thousand, six hundred seventeen".