350394374921 has 2 divisors, whose sum is σ = 350394374922. Its totient is φ = 350394374920.

The previous prime is 350394374861. The next prime is 350394374963. The reversal of 350394374921 is 129473493053.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331964954896 + 18429420025 = 576164^2 + 135755^2 .

It is an emirp because it is prime and its reverse (129473493053) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-350394374921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 350394374921.

It is not a weakly prime, because it can be changed into another prime (350394374321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175197187460 + 175197187461.

It is an arithmetic number, because the mean of its divisors is an integer number (175197187461).

Almost surely, 2^350394374921 is an apocalyptic number.

It is an amenable number.

350394374921 is a deficient number, since it is larger than the sum of its proper divisors (1).

350394374921 is an equidigital number, since it uses as much as digits as its factorization.

350394374921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 50.

The spelling of 350394374921 in words is "three hundred fifty billion, three hundred ninety-four million, three hundred seventy-four thousand, nine hundred twenty-one".