34513273921 has 12 divisors (see below), whose sum is σ = 41893664832. Its totient is φ = 28296596328.

The previous prime is 34513273913. The next prime is 34513273931. The reversal of 34513273921 is 12937231543.

It is a happy number.

It is not a de Polignac number, because 34513273921 - 2³ = 34513273913 is a prime.

It is a super-3 number, since 3×34513273921³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34513273931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15310885 + ... + 15313138.

It is an arithmetic number, because the mean of its divisors is an integer number (3491138736).

Almost surely, 2^34513273921 is an apocalyptic number.

It is an amenable number.

34513273921 is a deficient number, since it is larger than the sum of its proper divisors (7380390911).

34513273921 is a wasteful number, since it uses less digits than its factorization.

34513273921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30624060 (or 30624053 counting only the distinct ones).

The product of its digits is 136080, while the sum is 40.

The spelling of 34513273921 in words is "thirty-four billion, five hundred thirteen million, two hundred seventy-three thousand, nine hundred twenty-one".