345217938445157 has 4 divisors (see below), whose sum is σ = 345218179916256. Its totient is φ = 345217696974060.

The previous prime is 345217938445151. The next prime is 345217938445181. The reversal of 345217938445157 is 751544839712543.

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 a cyclic number.

It is not a de Polignac number, because 345217938445157 - 2¹⁶ = 345217938379621 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 (345217938445151) 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, 118578233 + ... + 121454654.

It is an arithmetic number, because the mean of its divisors is an integer number (86304544979064).

Almost surely, 2^{345217938445157} is an apocalyptic number.

It is an amenable number.

345217938445157 is a deficient number, since it is larger than the sum of its proper divisors (241471099).

345217938445157 is a wasteful number, since it uses less digits than its factorization.

345217938445157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241471098.

The product of its digits is 508032000, while the sum is 68.

The spelling of 345217938445157 in words is "three hundred forty-five trillion, two hundred seventeen billion, nine hundred thirty-eight million, four hundred forty-five thousand, one hundred fifty-seven".