27796856831 has 8 divisors (see below), whose sum is σ = 28699926528. Its totient is φ = 26894187000.

The previous prime is 27796856827. The next prime is 27796856897. The reversal of 27796856831 is 13865869772.

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

It is a cyclic number.

It is not a de Polignac number, because 27796856831 - 2² = 27796856827 is a prime.

It is a super-2 number, since 2×27796856831² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27796826831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44666 + ... + 239976.

It is an arithmetic number, because the mean of its divisors is an integer number (3587490816).

Almost surely, 2^27796856831 is an apocalyptic number.

27796856831 is a deficient number, since it is larger than the sum of its proper divisors (903069697).

27796856831 is a wasteful number, since it uses less digits than its factorization.

27796856831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199933.

The product of its digits is 30481920, while the sum is 62.

The spelling of 27796856831 in words is "twenty-seven billion, seven hundred ninety-six million, eight hundred fifty-six thousand, eight hundred thirty-one".