34320171623 has 4 divisors (see below), whose sum is σ = 34323863760. Its totient is φ = 34316479488.

The previous prime is 34320171619. The next prime is 34320171631. The reversal of 34320171623 is 32617102343.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 34320171623 - 2² = 34320171619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34320171623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34320171023) 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, 1832090 + ... + 1850727.

It is an arithmetic number, because the mean of its divisors is an integer number (8580965940).

Almost surely, 2^34320171623 is an apocalyptic number.

34320171623 is a deficient number, since it is larger than the sum of its proper divisors (3692137).

34320171623 is an equidigital number, since it uses as much as digits as its factorization.

34320171623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3692136.

The product of its (nonzero) digits is 18144, while the sum is 32.

Adding to 34320171623 its reverse (32617102343), we get a palindrome (66937273966).

The spelling of 34320171623 in words is "thirty-four billion, three hundred twenty million, one hundred seventy-one thousand, six hundred twenty-three".