345866954857 has 2 divisors, whose sum is σ = 345866954858. Its totient is φ = 345866954856.

The previous prime is 345866954767. The next prime is 345866954897. The reversal of 345866954857 is 758459668543.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316675182121 + 29191772736 = 562739^2 + 170856^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345866954857 is a prime.

It is not a weakly prime, because it can be changed into another prime (345866954897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172933477428 + 172933477429.

It is an arithmetic number, because the mean of its divisors is an integer number (172933477429).

Almost surely, 2^345866954857 is an apocalyptic number.

It is an amenable number.

345866954857 is a deficient number, since it is larger than the sum of its proper divisors (1).

345866954857 is an equidigital number, since it uses as much as digits as its factorization.

345866954857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912000, while the sum is 70.

The spelling of 345866954857 in words is "three hundred forty-five billion, eight hundred sixty-six million, nine hundred fifty-four thousand, eight hundred fifty-seven".