34845173391 has 32 divisors (see below), whose sum is σ = 54559098880. Its totient is φ = 19363919616.

The previous prime is 34845173383. The next prime is 34845173393. The reversal of 34845173391 is 19337154843.

It is a happy number.

It is not a de Polignac number, because 34845173391 - 2³ = 34845173383 is a prime.

It is a super-2 number, since 2×34845173391² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 34845173391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34845173393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1767195 + ... + 1786803.

It is an arithmetic number, because the mean of its divisors is an integer number (1704971840).

Almost surely, 2^34845173391 is an apocalyptic number.

34845173391 is a deficient number, since it is larger than the sum of its proper divisors (19713925489).

34845173391 is a wasteful number, since it uses less digits than its factorization.

34845173391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21943.

The product of its digits is 1088640, while the sum is 48.

The spelling of 34845173391 in words is "thirty-four billion, eight hundred forty-five million, one hundred seventy-three thousand, three hundred ninety-one".