345172455869 has 4 divisors (see below), whose sum is σ = 345174100800. Its totient is φ = 345170810940.

The previous prime is 345172455799. The next prime is 345172455923. The reversal of 345172455869 is 968554271543.

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 345172455869 - 2³² = 340877488573 is a prime.

It is a super-2 number, since 2×345172455869² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345172455169) 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, 452117 + ... + 945914.

It is an arithmetic number, because the mean of its divisors is an integer number (86293525200).

Almost surely, 2^345172455869 is an apocalyptic number.

It is an amenable number.

345172455869 is a deficient number, since it is larger than the sum of its proper divisors (1644931).

345172455869 is a wasteful number, since it uses less digits than its factorization.

345172455869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644930.

The product of its digits is 36288000, while the sum is 59.

The spelling of 345172455869 in words is "three hundred forty-five billion, one hundred seventy-two million, four hundred fifty-five thousand, eight hundred sixty-nine".