32215646423 has 4 divisors (see below), whose sum is σ = 32290047888. Its totient is φ = 32141244960.

The previous prime is 32215646363. The next prime is 32215646443. The reversal of 32215646423 is 32464651223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32464651223 = 176047 ⋅184409.

It is a cyclic number.

It is not a de Polignac number, because 32215646423 - 2²⁶ = 32148537559 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 (32215646443) 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, 37200083 + ... + 37200948.

It is an arithmetic number, because the mean of its divisors is an integer number (8072511972).

Almost surely, 2^32215646423 is an apocalyptic number.

32215646423 is a deficient number, since it is larger than the sum of its proper divisors (74401465).

32215646423 is an equidigital number, since it uses as much as digits as its factorization.

32215646423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74401464.

The product of its digits is 207360, while the sum is 38.

The spelling of 32215646423 in words is "thirty-two billion, two hundred fifteen million, six hundred forty-six thousand, four hundred twenty-three".