27640003619 has 2 divisors, whose sum is σ = 27640003620. Its totient is φ = 27640003618.

The previous prime is 27640003613. The next prime is 27640003649. The reversal of 27640003619 is 91630004672.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27640003619 is a prime.

It is a super-2 number, since 2×27640003619² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27640003613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13820001809 + 13820001810.

It is an arithmetic number, because the mean of its divisors is an integer number (13820001810).

Almost surely, 2^27640003619 is an apocalyptic number.

27640003619 is a deficient number, since it is larger than the sum of its proper divisors (1).

27640003619 is an equidigital number, since it uses as much as digits as its factorization.

27640003619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 27640003619 in words is "twenty-seven billion, six hundred forty million, three thousand, six hundred nineteen".