32721718479 has 4 divisors (see below), whose sum is σ = 43628957976. Its totient is φ = 21814478984.

The previous prime is 32721718441. The next prime is 32721718481. The reversal of 32721718479 is 97481712723.

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

It is a cyclic number.

It is not a de Polignac number, because 32721718479 - 2⁹ = 32721717967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32721718409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5453619744 + ... + 5453619749.

It is an arithmetic number, because the mean of its divisors is an integer number (10907239494).

Almost surely, 2^32721718479 is an apocalyptic number.

32721718479 is a deficient number, since it is larger than the sum of its proper divisors (10907239497).

32721718479 is a wasteful number, since it uses less digits than its factorization.

32721718479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10907239496.

The product of its digits is 1185408, while the sum is 51.

It can be divided in two parts, 327217 and 18479, that added together give a triangular number (345696 = T₈₃₁).

The spelling of 32721718479 in words is "thirty-two billion, seven hundred twenty-one million, seven hundred eighteen thousand, four hundred seventy-nine".