354500023205257 has 2 divisors, whose sum is σ = 354500023205258. Its totient is φ = 354500023205256.

The previous prime is 354500023205221. The next prime is 354500023205281. The reversal of 354500023205257 is 752502320005453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 354500023205241 + 16 = 18828171^2 + 4^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354500023205257 is a prime.

It is not a weakly prime, because it can be changed into another prime (354500023205297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177250011602628 + 177250011602629.

It is an arithmetic number, because the mean of its divisors is an integer number (177250011602629).

Almost surely, 2^{354500023205257} is an apocalyptic number.

It is an amenable number.

354500023205257 is a deficient number, since it is larger than the sum of its proper divisors (1).

354500023205257 is an equidigital number, since it uses as much as digits as its factorization.

354500023205257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260000, while the sum is 43.

The spelling of 354500023205257 in words is "three hundred fifty-four trillion, five hundred billion, twenty-three million, two hundred five thousand, two hundred fifty-seven".