27956388795 has 32 divisors (see below), whose sum is σ = 46688140800. Its totient is φ = 14257799424.

The previous prime is 27956388793. The next prime is 27956388827. The reversal of 27956388795 is 59788365972.

It is a happy number.

It is not a de Polignac number, because 27956388795 - 2¹ = 27956388793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is not an unprimeable number, because it can be changed into a prime (27956388793) 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 31 ways as a sum of consecutive naturals, for example, 1511916 + ... + 1530294.

It is an arithmetic number, because the mean of its divisors is an integer number (1459004400).

Almost surely, 2^27956388795 is an apocalyptic number.

27956388795 is a deficient number, since it is larger than the sum of its proper divisors (18731752005).

27956388795 is a wasteful number, since it uses less digits than its factorization.

27956388795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22819.

The product of its digits is 228614400, while the sum is 69.

The spelling of 27956388795 in words is "twenty-seven billion, nine hundred fifty-six million, three hundred eighty-eight thousand, seven hundred ninety-five".