34344520021 has 8 divisors (see below), whose sum is σ = 39788563904. Its totient is φ = 29034897120.

The previous prime is 34344520019. The next prime is 34344520037. The reversal of 34344520021 is 12002544343.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34344520021 - 2¹ = 34344520019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34344520121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33604695 + ... + 33605716.

It is an arithmetic number, because the mean of its divisors is an integer number (4973570488).

Almost surely, 2^34344520021 is an apocalyptic number.

It is an amenable number.

34344520021 is a deficient number, since it is larger than the sum of its proper divisors (5444043883).

34344520021 is an equidigital number, since it uses as much as digits as its factorization.

34344520021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67210491.

The product of its (nonzero) digits is 11520, while the sum is 28.

The spelling of 34344520021 in words is "thirty-four billion, three hundred forty-four million, five hundred twenty thousand, twenty-one".