32778872113 has 8 divisors (see below), whose sum is σ = 35302447656. Its totient is φ = 30255600000.

The previous prime is 32778872111. The next prime is 32778872177. The reversal of 32778872113 is 31127887723.

It can be written as a sum of positive squares in 4 ways, for example, as 453349264 + 32325522849 = 21292^2 + 179793^2 .

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 32778872113 - 2¹ = 32778872111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32778872111) 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, 180663 + ... + 313363.

It is an arithmetic number, because the mean of its divisors is an integer number (4412805957).

Almost surely, 2^32778872113 is an apocalyptic number.

It is an amenable number.

32778872113 is a deficient number, since it is larger than the sum of its proper divisors (2523575543).

32778872113 is a wasteful number, since it uses less digits than its factorization.

32778872113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151715.

The product of its digits is 790272, while the sum is 49.

The spelling of 32778872113 in words is "thirty-two billion, seven hundred seventy-eight million, eight hundred seventy-two thousand, one hundred thirteen".