345630310257 has 16 divisors (see below), whose sum is σ = 503688955392. Its totient is φ = 209870396160.

The previous prime is 345630310253. The next prime is 345630310271. The reversal of 345630310257 is 752013036543.

It is not a de Polignac number, because 345630310257 - 2² = 345630310253 is a prime.

It is a super-2 number, since 2×345630310257² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (345630310253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109305918 + ... + 109309079.

It is an arithmetic number, because the mean of its divisors is an integer number (31480559712).

Almost surely, 2^345630310257 is an apocalyptic number.

It is an amenable number.

345630310257 is a deficient number, since it is larger than the sum of its proper divisors (158058645135).

345630310257 is a wasteful number, since it uses less digits than its factorization.

345630310257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218615048.

The product of its (nonzero) digits is 226800, while the sum is 39.

The spelling of 345630310257 in words is "three hundred forty-five billion, six hundred thirty million, three hundred ten thousand, two hundred fifty-seven".