27002400813 has 24 divisors (see below), whose sum is σ = 40455743328. Its totient is φ = 17998172784.

The previous prime is 27002400811. The next prime is 27002400839. The reversal of 27002400813 is 31800420072.

It is not a de Polignac number, because 27002400813 - 2¹ = 27002400811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27002400811) 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, 2345770 + ... + 2357252.

It is an arithmetic number, because the mean of its divisors is an integer number (1685655972).

Almost surely, 2^27002400813 is an apocalyptic number.

It is an amenable number.

27002400813 is a deficient number, since it is larger than the sum of its proper divisors (13453342515).

27002400813 is an equidigital number, since it uses as much as digits as its factorization.

27002400813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21175 (or 21163 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

Adding to 27002400813 its reverse (31800420072), we get a palindrome (58802820885).

The spelling of 27002400813 in words is "twenty-seven billion, two million, four hundred thousand, eight hundred thirteen".