27503981929 has 2 divisors, whose sum is σ = 27503981930. Its totient is φ = 27503981928.

The previous prime is 27503981909. The next prime is 27503981933. The reversal of 27503981929 is 92918930572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27439259904 + 64722025 = 165648^2 + 8045^2 .

It is a cyclic number.

It is not a de Polignac number, because 27503981929 - 2²¹ = 27501884777 is a prime.

It is a super-2 number, since 2×27503981929² (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 27503981929.

It is not a weakly prime, because it can be changed into another prime (27503981909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13751990964 + 13751990965.

It is an arithmetic number, because the mean of its divisors is an integer number (13751990965).

Almost surely, 2^27503981929 is an apocalyptic number.

It is an amenable number.

27503981929 is a deficient number, since it is larger than the sum of its proper divisors (1).

27503981929 is an equidigital number, since it uses as much as digits as its factorization.

27503981929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 27503981929 in words is "twenty-seven billion, five hundred three million, nine hundred eighty-one thousand, nine hundred twenty-nine".