345728813873 has 16 divisors (see below), whose sum is σ = 369687897600. Its totient is φ = 322601408640.

The previous prime is 345728813869. The next prime is 345728813891. The reversal of 345728813873 is 378318827543.

It is a cyclic number.

It is not a de Polignac number, because 345728813873 - 2² = 345728813869 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345728813893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404165 + ... + 924557.

It is an arithmetic number, because the mean of its divisors is an integer number (23105493600).

Almost surely, 2^345728813873 is an apocalyptic number.

It is an amenable number.

345728813873 is a deficient number, since it is larger than the sum of its proper divisors (23959083727).

345728813873 is a wasteful number, since it uses less digits than its factorization.

345728813873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521192.

The product of its digits is 27095040, while the sum is 59.

The spelling of 345728813873 in words is "three hundred forty-five billion, seven hundred twenty-eight million, eight hundred thirteen thousand, eight hundred seventy-three".