34779421321 has 16 divisors (see below), whose sum is σ = 38810612160. Its totient is φ = 30973017600.

The previous prime is 34779421309. The next prime is 34779421331. The reversal of 34779421321 is 12312497743.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 34779421321 - 2³¹ = 32631937673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34779421331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202021 + ... + 332221.

It is an arithmetic number, because the mean of its divisors is an integer number (2425663260).

Almost surely, 2^34779421321 is an apocalyptic number.

It is an amenable number.

34779421321 is a deficient number, since it is larger than the sum of its proper divisors (4031190839).

34779421321 is a wasteful number, since it uses less digits than its factorization.

34779421321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131064.

The product of its digits is 254016, while the sum is 43.

The spelling of 34779421321 in words is "thirty-four billion, seven hundred seventy-nine million, four hundred twenty-one thousand, three hundred twenty-one".