345652718557 has 2 divisors, whose sum is σ = 345652718558. Its totient is φ = 345652718556.

The previous prime is 345652718503. The next prime is 345652718561. The reversal of 345652718557 is 755817256543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313766902201 + 31885816356 = 560149^2 + 178566^2 .

It is a cyclic number.

It is not a de Polignac number, because 345652718557 - 2¹¹ = 345652716509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345652718597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172826359278 + 172826359279.

It is an arithmetic number, because the mean of its divisors is an integer number (172826359279).

Almost surely, 2^345652718557 is an apocalyptic number.

It is an amenable number.

345652718557 is a deficient number, since it is larger than the sum of its proper divisors (1).

345652718557 is an equidigital number, since it uses as much as digits as its factorization.

345652718557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280000, while the sum is 58.

The spelling of 345652718557 in words is "three hundred forty-five billion, six hundred fifty-two million, seven hundred eighteen thousand, five hundred fifty-seven".