34015423621 has 4 divisors (see below), whose sum is σ = 34021237132. Its totient is φ = 34009610112.

The previous prime is 34015423613. The next prime is 34015423643. The reversal of 34015423621 is 12632451043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12632451043 = 307 ⋅41148049.

It can be written as a sum of positive squares in 2 ways, for example, as 24531390625 + 9484032996 = 156625^2 + 97386^2 .

It is a cyclic number.

It is not a de Polignac number, because 34015423621 - 2³ = 34015423613 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 (34015423681) 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, 2897970 + ... + 2909683.

It is an arithmetic number, because the mean of its divisors is an integer number (8505309283).

Almost surely, 2^34015423621 is an apocalyptic number.

It is an amenable number.

34015423621 is a deficient number, since it is larger than the sum of its proper divisors (5813511).

34015423621 is an equidigital number, since it uses as much as digits as its factorization.

34015423621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813510.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 34015423621 its reverse (12632451043), we get a palindrome (46647874664).

The spelling of 34015423621 in words is "thirty-four billion, fifteen million, four hundred twenty-three thousand, six hundred twenty-one".