27131894963 has 2 divisors, whose sum is σ = 27131894964. Its totient is φ = 27131894962.

The previous prime is 27131894941. The next prime is 27131895067. The reversal of 27131894963 is 36949813172.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27131894963 - 2⁸ = 27131894707 is a prime.

It is a super-2 number, since 2×27131894963² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27131894563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13565947481 + 13565947482.

It is an arithmetic number, because the mean of its divisors is an integer number (13565947482).

Almost surely, 2^27131894963 is an apocalyptic number.

27131894963 is a deficient number, since it is larger than the sum of its proper divisors (1).

27131894963 is an equidigital number, since it uses as much as digits as its factorization.

27131894963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 53.

The spelling of 27131894963 in words is "twenty-seven billion, one hundred thirty-one million, eight hundred ninety-four thousand, nine hundred sixty-three".