345630268873 has 2 divisors, whose sum is σ = 345630268874. Its totient is φ = 345630268872.

The previous prime is 345630268859. The next prime is 345630268889. The reversal of 345630268873 is 378862036543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 257532905529 + 88097363344 = 507477^2 + 296812^2 .

It is an emirp because it is prime and its reverse (378862036543) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345630268873 is a prime.

It is a super-2 number, since 2×345630268873² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (345630260873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172815134436 + 172815134437.

It is an arithmetic number, because the mean of its divisors is an integer number (172815134437).

Almost surely, 2^345630268873 is an apocalyptic number.

It is an amenable number.

345630268873 is a deficient number, since it is larger than the sum of its proper divisors (1).

345630268873 is an equidigital number, since it uses as much as digits as its factorization.

345630268873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17418240, while the sum is 55.

The spelling of 345630268873 in words is "three hundred forty-five billion, six hundred thirty million, two hundred sixty-eight thousand, eight hundred seventy-three".