354942032849 has 2 divisors, whose sum is σ = 354942032850. Its totient is φ = 354942032848.

The previous prime is 354942032843. The next prime is 354942032869. The reversal of 354942032849 is 948230249453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325493070400 + 29448962449 = 570520^2 + 171607^2 .

It is a cyclic number.

It is not a de Polignac number, because 354942032849 - 2²⁰ = 354940984273 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 354942032849.

It is not a weakly prime, because it can be changed into another prime (354942032843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177471016424 + 177471016425.

It is an arithmetic number, because the mean of its divisors is an integer number (177471016425).

Almost surely, 2^354942032849 is an apocalyptic number.

It is an amenable number.

354942032849 is a deficient number, since it is larger than the sum of its proper divisors (1).

354942032849 is an equidigital number, since it uses as much as digits as its factorization.

354942032849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7464960, while the sum is 53.

The spelling of 354942032849 in words is "three hundred fifty-four billion, nine hundred forty-two million, thirty-two thousand, eight hundred forty-nine".