345815316593 has 2 divisors, whose sum is σ = 345815316594. Its totient is φ = 345815316592.

The previous prime is 345815316533. The next prime is 345815316617. The reversal of 345815316593 is 395613518543.

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., 260561244304 + 85254072289 = 510452^2 + 291983^2 .

It is a cyclic number.

It is not a de Polignac number, because 345815316593 - 2¹⁴ = 345815300209 is a prime.

It is a super-2 number, since 2×345815316593² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (345815316533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172907658296 + 172907658297.

It is an arithmetic number, because the mean of its divisors is an integer number (172907658297).

Almost surely, 2^345815316593 is an apocalyptic number.

It is an amenable number.

345815316593 is a deficient number, since it is larger than the sum of its proper divisors (1).

345815316593 is an equidigital number, since it uses as much as digits as its factorization.

345815316593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832000, while the sum is 53.

The spelling of 345815316593 in words is "three hundred forty-five billion, eight hundred fifteen million, three hundred sixteen thousand, five hundred ninety-three".