27376437947 has 2 divisors, whose sum is σ = 27376437948. Its totient is φ = 27376437946.

The previous prime is 27376437923. The next prime is 27376437989. The reversal of 27376437947 is 74973467372.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27376437947 - 2²⁸ = 27108002491 is a prime.

It is not a weakly prime, because it can be changed into another prime (27376437547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13688218973 + 13688218974.

It is an arithmetic number, because the mean of its divisors is an integer number (13688218974).

Almost surely, 2^27376437947 is an apocalyptic number.

27376437947 is a deficient number, since it is larger than the sum of its proper divisors (1).

27376437947 is an equidigital number, since it uses as much as digits as its factorization.

27376437947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37340352, while the sum is 59.

The spelling of 27376437947 in words is "twenty-seven billion, three hundred seventy-six million, four hundred thirty-seven thousand, nine hundred forty-seven".