345229518649 has 2 divisors, whose sum is σ = 345229518650. Its totient is φ = 345229518648.

The previous prime is 345229518643. The next prime is 345229518707. The reversal of 345229518649 is 946815922543.

It is a happy number.

It is an a-pointer prime, because the next prime (345229518707) can be obtained adding 345229518649 to its sum of digits (58).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296551039225 + 48678479424 = 544565^2 + 220632^2 .

It is a cyclic number.

It is not a de Polignac number, because 345229518649 - 2⁵ = 345229518617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345229518593 and 345229518602.

It is not a weakly prime, because it can be changed into another prime (345229518643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172614759324 + 172614759325.

It is an arithmetic number, because the mean of its divisors is an integer number (172614759325).

Almost surely, 2^345229518649 is an apocalyptic number.

It is an amenable number.

345229518649 is a deficient number, since it is larger than the sum of its proper divisors (1).

345229518649 is an equidigital number, since it uses as much as digits as its factorization.

345229518649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18662400, while the sum is 58.

The spelling of 345229518649 in words is "three hundred forty-five billion, two hundred twenty-nine million, five hundred eighteen thousand, six hundred forty-nine".