27319679999 has 4 divisors (see below), whose sum is σ = 28261737960. Its totient is φ = 26377622040.

The previous prime is 27319679977. The next prime is 27319680001. The reversal of 27319679999 is 99997691372.

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 27319679999 - 2³² = 23024712703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27319649999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471028937 + ... + 471028994.

It is an arithmetic number, because the mean of its divisors is an integer number (7065434490).

Almost surely, 2^27319679999 is an apocalyptic number.

27319679999 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

27319679999 is a deficient number, since it is larger than the sum of its proper divisors (942057961).

27319679999 is an equidigital number, since it uses as much as digits as its factorization.

27319679999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942057960.

The product of its digits is 104162436, while the sum is 71.

The spelling of 27319679999 in words is "twenty-seven billion, three hundred nineteen million, six hundred seventy-nine thousand, nine hundred ninety-nine".