345608562749 has 2 divisors, whose sum is σ = 345608562750. Its totient is φ = 345608562748.

The previous prime is 345608562709. The next prime is 345608562751. The reversal of 345608562749 is 947265806543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 335059218649 + 10549344100 = 578843^2 + 102710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345608562749 is a prime.

Together with 345608562751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345608562709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172804281374 + 172804281375.

It is an arithmetic number, because the mean of its divisors is an integer number (172804281375).

Almost surely, 2^345608562749 is an apocalyptic number.

It is an amenable number.

345608562749 is a deficient number, since it is larger than the sum of its proper divisors (1).

345608562749 is an equidigital number, since it uses as much as digits as its factorization.

345608562749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43545600, while the sum is 59.

The spelling of 345608562749 in words is "three hundred forty-five billion, six hundred eight million, five hundred sixty-two thousand, seven hundred forty-nine".