354844385249 has 2 divisors, whose sum is σ = 354844385250. Its totient is φ = 354844385248.

The previous prime is 354844385219. The next prime is 354844385407. The reversal of 354844385249 is 942583448453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260438750224 + 94405635025 = 510332^2 + 307255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354844385249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (354844385219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177422192624 + 177422192625.

It is an arithmetic number, because the mean of its divisors is an integer number (177422192625).

Almost surely, 2^354844385249 is an apocalyptic number.

It is an amenable number.

354844385249 is a deficient number, since it is larger than the sum of its proper divisors (1).

354844385249 is an equidigital number, since it uses as much as digits as its factorization.

354844385249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66355200, while the sum is 59.

The spelling of 354844385249 in words is "three hundred fifty-four billion, eight hundred forty-four million, three hundred eighty-five thousand, two hundred forty-nine".