27400367453 has 4 divisors (see below), whose sum is σ = 28345207740. Its totient is φ = 26455527168.

The previous prime is 27400367441. The next prime is 27400367461. The reversal of 27400367453 is 35476300472.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7361983204 + 20038384249 = 85802^2 + 141557^2 .

It is a cyclic number.

It is not a de Polignac number, because 27400367453 - 2²⁸ = 27131931997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27400367453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27400367483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472420100 + ... + 472420157.

It is an arithmetic number, because the mean of its divisors is an integer number (7086301935).

Almost surely, 2^27400367453 is an apocalyptic number.

It is an amenable number.

27400367453 is a deficient number, since it is larger than the sum of its proper divisors (944840287).

27400367453 is an equidigital number, since it uses as much as digits as its factorization.

27400367453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944840286.

The product of its (nonzero) digits is 423360, while the sum is 41.

The spelling of 27400367453 in words is "twenty-seven billion, four hundred million, three hundred sixty-seven thousand, four hundred fifty-three".