345233409649 has 4 divisors (see below), whose sum is σ = 345246257664. Its totient is φ = 345220561636.

The previous prime is 345233409643. The next prime is 345233409709. The reversal of 345233409649 is 946904332543.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 345233409649 - 2⁵ = 345233409617 is a prime.

It is a super-2 number, since 2×345233409649² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345233409596 and 345233409605.

It is not an unprimeable number, because it can be changed into a prime (345233409643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6383617 + ... + 6437470.

It is an arithmetic number, because the mean of its divisors is an integer number (86311564416).

Almost surely, 2^345233409649 is an apocalyptic number.

It is an amenable number.

345233409649 is a deficient number, since it is larger than the sum of its proper divisors (12848015).

345233409649 is a wasteful number, since it uses less digits than its factorization.

345233409649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12848014.

The product of its (nonzero) digits is 8398080, while the sum is 52.

The spelling of 345233409649 in words is "three hundred forty-five billion, two hundred thirty-three million, four hundred nine thousand, six hundred forty-nine".