354295856549 has 2 divisors, whose sum is σ = 354295856550. Its totient is φ = 354295856548.

The previous prime is 354295856449. The next prime is 354295856557. The reversal of 354295856549 is 945658592453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224268544900 + 130027311649 = 473570^2 + 360593^2 .

It is a cyclic number.

It is not a de Polignac number, because 354295856549 - 2¹² = 354295852453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354295856449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177147928274 + 177147928275.

It is an arithmetic number, because the mean of its divisors is an integer number (177147928275).

Almost surely, 2^354295856549 is an apocalyptic number.

It is an amenable number.

354295856549 is a deficient number, since it is larger than the sum of its proper divisors (1).

354295856549 is an equidigital number, since it uses as much as digits as its factorization.

354295856549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280000, while the sum is 65.

The spelling of 354295856549 in words is "three hundred fifty-four billion, two hundred ninety-five million, eight hundred fifty-six thousand, five hundred forty-nine".