34556353621 has 4 divisors (see below), whose sum is σ = 34711315072. Its totient is φ = 34401392172.

The previous prime is 34556353619. The next prime is 34556353627. The reversal of 34556353621 is 12635365543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 34556353621 - 2¹ = 34556353619 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 (34556353627) 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, 77480391 + ... + 77480836.

It is an arithmetic number, because the mean of its divisors is an integer number (8677828768).

Almost surely, 2^34556353621 is an apocalyptic number.

It is an amenable number.

34556353621 is a deficient number, since it is larger than the sum of its proper divisors (154961451).

34556353621 is a wasteful number, since it uses less digits than its factorization.

34556353621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154961450.

The product of its digits is 972000, while the sum is 43.

It can be divided in two parts, 34 and 556353621, that added together give a palindrome (556353655).

The spelling of 34556353621 in words is "thirty-four billion, five hundred fifty-six million, three hundred fifty-three thousand, six hundred twenty-one".