27731950963 has 2 divisors, whose sum is σ = 27731950964. Its totient is φ = 27731950962.

The previous prime is 27731950951. The next prime is 27731950969. The reversal of 27731950963 is 36905913772.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27731950963 is a prime.

It is a super-2 number, since 2×27731950963² (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 27731950963.

It is not a weakly prime, because it can be changed into another prime (27731950969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13865975481 + 13865975482.

It is an arithmetic number, because the mean of its divisors is an integer number (13865975482).

Almost surely, 2^27731950963 is an apocalyptic number.

27731950963 is a deficient number, since it is larger than the sum of its proper divisors (1).

27731950963 is an equidigital number, since it uses as much as digits as its factorization.

27731950963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2143260, while the sum is 52.

The spelling of 27731950963 in words is "twenty-seven billion, seven hundred thirty-one million, nine hundred fifty thousand, nine hundred sixty-three".