27845600747 has 2 divisors, whose sum is σ = 27845600748. Its totient is φ = 27845600746.

The previous prime is 27845600723. The next prime is 27845600759. The reversal of 27845600747 is 74700654872.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27845600747 is a prime.

It is a super-2 number, since 2×27845600747² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27845600695 and 27845600704.

It is not a weakly prime, because it can be changed into another prime (27845600047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13922800373 + 13922800374.

It is an arithmetic number, because the mean of its divisors is an integer number (13922800374).

Almost surely, 2^27845600747 is an apocalyptic number.

27845600747 is a deficient number, since it is larger than the sum of its proper divisors (1).

27845600747 is an equidigital number, since it uses as much as digits as its factorization.

27845600747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2634240, while the sum is 50.

The spelling of 27845600747 in words is "twenty-seven billion, eight hundred forty-five million, six hundred thousand, seven hundred forty-seven".