27028897399 has 24 divisors (see below), whose sum is σ = 31688018208. Its totient is φ = 22986915840.

The previous prime is 27028897369. The next prime is 27028897409. The reversal of 27028897399 is 99379882072.

It is not a de Polignac number, because 27028897399 - 2⁷ = 27028897271 is a prime.

It is a super-2 number, since 2×27028897399² (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 27028897399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27028897369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3307879 + ... + 3316039.

It is an arithmetic number, because the mean of its divisors is an integer number (1320334092).

Almost surely, 2^27028897399 is an apocalyptic number.

27028897399 is a deficient number, since it is larger than the sum of its proper divisors (4659120809).

27028897399 is a wasteful number, since it uses less digits than its factorization.

27028897399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8695 (or 8688 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 64.

The spelling of 27028897399 in words is "twenty-seven billion, twenty-eight million, eight hundred ninety-seven thousand, three hundred ninety-nine".