32621790449 has 4 divisors (see below), whose sum is σ = 32655526464. Its totient is φ = 32588054436.

The previous prime is 32621790401. The next prime is 32621790457. The reversal of 32621790449 is 94409712623.

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 32621790449 - 2³² = 28326823153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32621790469) 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, 16866557 + ... + 16868490.

It is an arithmetic number, because the mean of its divisors is an integer number (8163881616).

Almost surely, 2^32621790449 is an apocalyptic number.

It is an amenable number.

32621790449 is a deficient number, since it is larger than the sum of its proper divisors (33736015).

32621790449 is an equidigital number, since it uses as much as digits as its factorization.

32621790449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33736014.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 32621790449 in words is "thirty-two billion, six hundred twenty-one million, seven hundred ninety thousand, four hundred forty-nine".