354043345049 has 2 divisors, whose sum is σ = 354043345050. Its totient is φ = 354043345048.

The previous prime is 354043345013. The next prime is 354043345127. The reversal of 354043345049 is 940543340453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185680842649 + 168362502400 = 430907^2 + 410320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354043345049 is a prime.

It is not a weakly prime, because it can be changed into another prime (354043345349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177021672524 + 177021672525.

It is an arithmetic number, because the mean of its divisors is an integer number (177021672525).

Almost surely, 2^354043345049 is an apocalyptic number.

It is an amenable number.

354043345049 is a deficient number, since it is larger than the sum of its proper divisors (1).

354043345049 is an equidigital number, since it uses as much as digits as its factorization.

354043345049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 44.

The spelling of 354043345049 in words is "three hundred fifty-four billion, forty-three million, three hundred forty-five thousand, forty-nine".