27544140007 has 2 divisors, whose sum is σ = 27544140008. Its totient is φ = 27544140006.

The previous prime is 27544139981. The next prime is 27544140011. The reversal of 27544140007 is 70004144572.

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-27544140007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27544140067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13772070003 + 13772070004.

It is an arithmetic number, because the mean of its divisors is an integer number (13772070004).

Almost surely, 2^27544140007 is an apocalyptic number.

27544140007 is a deficient number, since it is larger than the sum of its proper divisors (1).

27544140007 is an equidigital number, since it uses as much as digits as its factorization.

27544140007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31360, while the sum is 34.

Adding to 27544140007 its reverse (70004144572), we get a palindrome (97548284579).

The spelling of 27544140007 in words is "twenty-seven billion, five hundred forty-four million, one hundred forty thousand, seven".