345670651949 has 12 divisors (see below), whose sum is σ = 403375170204. Its totient is φ = 295354450944.

The previous prime is 345670651943. The next prime is 345670651979. The reversal of 345670651949 is 949156076543.

It can be written as a sum of positive squares in 2 ways, for example, as 154356265924 + 191314386025 = 392882^2 + 437395^2 .

It is not a de Polignac number, because 345670651949 - 2³² = 341375684653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345670651943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11111444 + ... + 11142509.

It is an arithmetic number, because the mean of its divisors is an integer number (33614597517).

Almost surely, 2^345670651949 is an apocalyptic number.

It is an amenable number.

345670651949 is a deficient number, since it is larger than the sum of its proper divisors (57704518255).

345670651949 is a wasteful number, since it uses less digits than its factorization.

345670651949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22254284 (or 22254277 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 59.

The spelling of 345670651949 in words is "three hundred forty-five billion, six hundred seventy million, six hundred fifty-one thousand, nine hundred forty-nine".