27796416637 has 4 divisors (see below), whose sum is σ = 30323363616. Its totient is φ = 25269469660.

The previous prime is 27796416601. The next prime is 27796416649. The reversal of 27796416637 is 73661469772.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27796416637 - 2³¹ = 25648932989 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27796416677) 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, 1263473473 + ... + 1263473494.

It is an arithmetic number, because the mean of its divisors is an integer number (7580840904).

Almost surely, 2^27796416637 is an apocalyptic number.

It is an amenable number.

27796416637 is a deficient number, since it is larger than the sum of its proper divisors (2526946979).

27796416637 is a wasteful number, since it uses less digits than its factorization.

27796416637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526946978.

The product of its digits is 16003008, while the sum is 58.

The spelling of 27796416637 in words is "twenty-seven billion, seven hundred ninety-six million, four hundred sixteen thousand, six hundred thirty-seven".