27295140731 has 2 divisors, whose sum is σ = 27295140732. Its totient is φ = 27295140730.

The previous prime is 27295140683. The next prime is 27295140737. The reversal of 27295140731 is 13704159272.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27295140731 - 2¹⁴ = 27295124347 is a prime.

It is a super-2 number, since 2×27295140731² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27295140737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13647570365 + 13647570366.

It is an arithmetic number, because the mean of its divisors is an integer number (13647570366).

Almost surely, 2^27295140731 is an apocalyptic number.

27295140731 is a deficient number, since it is larger than the sum of its proper divisors (1).

27295140731 is an equidigital number, since it uses as much as digits as its factorization.

27295140731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 27295140731 in words is "twenty-seven billion, two hundred ninety-five million, one hundred forty thousand, seven hundred thirty-one".