27389269499 has 12 divisors (see below), whose sum is σ = 28223564544. Its totient is φ = 26578930464.

The previous prime is 27389269471. The next prime is 27389269543. The reversal of 27389269499 is 99496298372.

It is a de Polignac number, because none of the positive numbers 2^k-27389269499 is a prime.

It is a super-2 number, since 2×27389269499² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27389269429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 498209 + ... + 550445.

It is an arithmetic number, because the mean of its divisors is an integer number (2351963712).

Almost surely, 2^27389269499 is an apocalyptic number.

27389269499 is a deficient number, since it is larger than the sum of its proper divisors (834295045).

27389269499 is an equidigital number, since it uses as much as digits as its factorization.

27389269499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52694 (or 52657 counting only the distinct ones).

The product of its digits is 105815808, while the sum is 68.

The spelling of 27389269499 in words is "twenty-seven billion, three hundred eighty-nine million, two hundred sixty-nine thousand, four hundred ninety-nine".