345608565281 has 8 divisors (see below), whose sum is σ = 394984857984. Its totient is φ = 296233182720.

The previous prime is 345608565277. The next prime is 345608565299. The reversal of 345608565281 is 182565806543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345608565281 - 2² = 345608565277 is a prime.

It is a super-2 number, since 2×345608565281² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345608165281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111676 + ... + 1388178.

It is an arithmetic number, because the mean of its divisors is an integer number (49373107248).

Almost surely, 2^345608565281 is an apocalyptic number.

It is an amenable number.

345608565281 is a deficient number, since it is larger than the sum of its proper divisors (49376292703).

345608565281 is a wasteful number, since it uses less digits than its factorization.

345608565281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455071.

The product of its (nonzero) digits is 6912000, while the sum is 53.

The spelling of 345608565281 in words is "three hundred forty-five billion, six hundred eight million, five hundred sixty-five thousand, two hundred eighty-one".