32918772961 has 8 divisors (see below), whose sum is σ = 32989248864. Its totient is φ = 32848343040.

The previous prime is 32918772949. The next prime is 32918772989. The reversal of 32918772961 is 16927781923.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32918772961 - 2¹⁵ = 32918740193 is a prime.

It is a super-2 number, since 2×32918772961² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32918772361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1682145 + ... + 1701601.

It is an arithmetic number, because the mean of its divisors is an integer number (4123656108).

Almost surely, 2^32918772961 is an apocalyptic number.

It is an amenable number.

32918772961 is a deficient number, since it is larger than the sum of its proper divisors (70475903).

32918772961 is a wasteful number, since it uses less digits than its factorization.

32918772961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22991.

The product of its digits is 2286144, while the sum is 55.

The spelling of 32918772961 in words is "thirty-two billion, nine hundred eighteen million, seven hundred seventy-two thousand, nine hundred sixty-one".