345678085049 has 4 divisors (see below), whose sum is σ = 377103365520. Its totient is φ = 314252804580.

The previous prime is 345678085021. The next prime is 345678085061. The reversal of 345678085049 is 940580876543.

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 not a de Polignac number, because 345678085049 - 2⁸ = 345678084793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345678085099) 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, 15712640219 + ... + 15712640240.

It is an arithmetic number, because the mean of its divisors is an integer number (94275841380).

Almost surely, 2^345678085049 is an apocalyptic number.

It is an amenable number.

345678085049 is a deficient number, since it is larger than the sum of its proper divisors (31425280471).

345678085049 is a wasteful number, since it uses less digits than its factorization.

345678085049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31425280470.

The product of its (nonzero) digits is 29030400, while the sum is 59.

The spelling of 345678085049 in words is "three hundred forty-five billion, six hundred seventy-eight million, eighty-five thousand, forty-nine".