34320171621 has 16 divisors (see below), whose sum is σ = 45857635200. Its totient is φ = 22831448640.

The previous prime is 34320171619. The next prime is 34320171631. The reversal of 34320171621 is 12617102343.

It is a happy number.

It is not a de Polignac number, because 34320171621 - 2¹ = 34320171619 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34320171631) 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 15 ways as a sum of consecutive naturals, for example, 7424691 + ... + 7429311.

It is an arithmetic number, because the mean of its divisors is an integer number (2866102200).

Almost surely, 2^34320171621 is an apocalyptic number.

It is an amenable number.

34320171621 is a deficient number, since it is larger than the sum of its proper divisors (11537463579).

34320171621 is a wasteful number, since it uses less digits than its factorization.

34320171621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9356.

The product of its (nonzero) digits is 6048, while the sum is 30.

Adding to 34320171621 its reverse (12617102343), we get a palindrome (46937273964).

The spelling of 34320171621 in words is "thirty-four billion, three hundred twenty million, one hundred seventy-one thousand, six hundred twenty-one".