32309423645 has 4 divisors (see below), whose sum is σ = 38771308380. Its totient is φ = 25847538912.

The previous prime is 32309423621. The next prime is 32309423669. The reversal of 32309423645 is 54632490323.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (32309423621) and next prime (32309423669).

It can be written as a sum of positive squares in 2 ways, for example, as 6253330084 + 26056093561 = 79078^2 + 161419^2 .

It is a cyclic number.

It is not a de Polignac number, because 32309423645 - 2¹⁸ = 32309161501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3230942360 + ... + 3230942369.

It is an arithmetic number, because the mean of its divisors is an integer number (9692827095).

Almost surely, 2^32309423645 is an apocalyptic number.

It is an amenable number.

32309423645 is a deficient number, since it is larger than the sum of its proper divisors (6461884735).

32309423645 is an equidigital number, since it uses as much as digits as its factorization.

32309423645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6461884734.

The product of its (nonzero) digits is 466560, while the sum is 41.

The spelling of 32309423645 in words is "thirty-two billion, three hundred nine million, four hundred twenty-three thousand, six hundred forty-five".