27642433902 has 8 divisors (see below), whose sum is σ = 55284867816. Its totient is φ = 9214144632.

The previous prime is 27642433853. The next prime is 27642433913. The reversal of 27642433902 is 20933424672.

27642433902 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

27642433902 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2303536153 + ... + 2303536164.

It is an arithmetic number, because the mean of its divisors is an integer number (6910608477).

Almost surely, 2^27642433902 is an apocalyptic number.

27642433902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27642433902 is a wasteful number, since it uses less digits than its factorization.

27642433902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4607072322.

The product of its (nonzero) digits is 435456, while the sum is 42.

The spelling of 27642433902 in words is "twenty-seven billion, six hundred forty-two million, four hundred thirty-three thousand, nine hundred two".