32381870399 has 4 divisors (see below), whose sum is σ = 32930715720. Its totient is φ = 31833025080.

The previous prime is 32381870393. The next prime is 32381870401. The reversal of 32381870399 is 99307818323.

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 32381870399 - 2⁴ = 32381870383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32381870399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32381870393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274422572 + ... + 274422689.

It is an arithmetic number, because the mean of its divisors is an integer number (8232678930).

Almost surely, 2^32381870399 is an apocalyptic number.

32381870399 is a deficient number, since it is larger than the sum of its proper divisors (548845321).

32381870399 is an equidigital number, since it uses as much as digits as its factorization.

32381870399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548845320.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 32381870399 in words is "thirty-two billion, three hundred eighty-one million, eight hundred seventy thousand, three hundred ninety-nine".