32197487615 has 4 divisors (see below), whose sum is σ = 38636985144. Its totient is φ = 25757990088.

The previous prime is 32197487591. The next prime is 32197487617. The reversal of 32197487615 is 51678479123.

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 32197487615 - 2⁶ = 32197487551 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 (32197487617) 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, 3219748757 + ... + 3219748766.

It is an arithmetic number, because the mean of its divisors is an integer number (9659246286).

Almost surely, 2^32197487615 is an apocalyptic number.

32197487615 is a deficient number, since it is larger than the sum of its proper divisors (6439497529).

32197487615 is an equidigital number, since it uses as much as digits as its factorization.

32197487615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6439497528.

The product of its digits is 2540160, while the sum is 53.

The spelling of 32197487615 in words is "thirty-two billion, one hundred ninety-seven million, four hundred eighty-seven thousand, six hundred fifteen".