349667860897 has 2 divisors, whose sum is σ = 349667860898. Its totient is φ = 349667860896.

The previous prime is 349667860757. The next prime is 349667860909. The reversal of 349667860897 is 798068766943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 321478794081 + 28189066816 = 566991^2 + 167896^2 .

It is a cyclic number.

It is not a de Polignac number, because 349667860897 - 2²³ = 349659472289 is a prime.

It is a super-2 number, since 2×349667860897² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (349667800897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174833930448 + 174833930449.

It is an arithmetic number, because the mean of its divisors is an integer number (174833930449).

Almost surely, 2^349667860897 is an apocalyptic number.

It is an amenable number.

349667860897 is a deficient number, since it is larger than the sum of its proper divisors (1).

349667860897 is an equidigital number, since it uses as much as digits as its factorization.

349667860897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 658409472, while the sum is 73.

The spelling of 349667860897 in words is "three hundred forty-nine billion, six hundred sixty-seven million, eight hundred sixty thousand, eight hundred ninety-seven".