351338611691 has 2 divisors, whose sum is σ = 351338611692. Its totient is φ = 351338611690.

The previous prime is 351338611667. The next prime is 351338611781. The reversal of 351338611691 is 196116833153.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-351338611691 is a prime.

It is not a weakly prime, because it can be changed into another prime (351338610691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175669305845 + 175669305846.

It is an arithmetic number, because the mean of its divisors is an integer number (175669305846).

Almost surely, 2^351338611691 is an apocalyptic number.

351338611691 is a deficient number, since it is larger than the sum of its proper divisors (1).

351338611691 is an equidigital number, since it uses as much as digits as its factorization.

351338611691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 47.

The spelling of 351338611691 in words is "three hundred fifty-one billion, three hundred thirty-eight million, six hundred eleven thousand, six hundred ninety-one".