345866954897 has 2 divisors, whose sum is σ = 345866954898. Its totient is φ = 345866954896.

The previous prime is 345866954857. The next prime is 345866954933. The reversal of 345866954897 is 798459668543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215889400321 + 129977554576 = 464639^2 + 360524^2 .

It is a cyclic number.

It is not a de Polignac number, because 345866954897 - 2¹⁸ = 345866692753 is a prime.

It is not a weakly prime, because it can be changed into another prime (345866954857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172933477448 + 172933477449.

It is an arithmetic number, because the mean of its divisors is an integer number (172933477449).

Almost surely, 2^345866954897 is an apocalyptic number.

It is an amenable number.

345866954897 is a deficient number, since it is larger than the sum of its proper divisors (1).

345866954897 is an equidigital number, since it uses as much as digits as its factorization.

345866954897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1567641600, while the sum is 74.

The spelling of 345866954897 in words is "three hundred forty-five billion, eight hundred sixty-six million, nine hundred fifty-four thousand, eight hundred ninety-seven".