27966053651 has 2 divisors, whose sum is σ = 27966053652. Its totient is φ = 27966053650.

The previous prime is 27966053567. The next prime is 27966053681. The reversal of 27966053651 is 15635066972.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27966053651 is a prime.

It is a super-2 number, since 2×27966053651² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27966053651.

It is not a weakly prime, because it can be changed into another prime (27966053681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13983026825 + 13983026826.

It is an arithmetic number, because the mean of its divisors is an integer number (13983026826).

Almost surely, 2^27966053651 is an apocalyptic number.

27966053651 is a deficient number, since it is larger than the sum of its proper divisors (1).

27966053651 is an equidigital number, since it uses as much as digits as its factorization.

27966053651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2041200, while the sum is 50.

The spelling of 27966053651 in words is "twenty-seven billion, nine hundred sixty-six million, fifty-three thousand, six hundred fifty-one".