27912791379 has 32 divisors (see below), whose sum is σ = 41916395520. Its totient is φ = 16373318400.

The previous prime is 27912791303. The next prime is 27912791447. The reversal of 27912791379 is 97319721972.

It is a happy number.

It is not a de Polignac number, because 27912791379 - 2¹⁶ = 27912725843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27912793379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173367 + ... + 293055.

It is an arithmetic number, because the mean of its divisors is an integer number (1309887360).

Almost surely, 2^27912791379 is an apocalyptic number.

27912791379 is a deficient number, since it is larger than the sum of its proper divisors (14003604141).

27912791379 is a wasteful number, since it uses less digits than its factorization.

27912791379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119931.

The product of its digits is 3000564, while the sum is 57.

The spelling of 27912791379 in words is "twenty-seven billion, nine hundred twelve million, seven hundred ninety-one thousand, three hundred seventy-nine".