27252739469 has 4 divisors (see below), whose sum is σ = 27533695644. Its totient is φ = 26971783296.

The previous prime is 27252739453. The next prime is 27252739489. The reversal of 27252739469 is 96493725272.

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 20402694244 + 6850045225 = 142838^2 + 82765^2 .

It is a cyclic number.

It is not a de Polignac number, because 27252739469 - 2⁴ = 27252739453 is a prime.

It is a super-2 number, since 2×27252739469² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27252739489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140477942 + ... + 140478135.

It is an arithmetic number, because the mean of its divisors is an integer number (6883423911).

Almost surely, 2^27252739469 is an apocalyptic number.

It is an amenable number.

27252739469 is a deficient number, since it is larger than the sum of its proper divisors (280956175).

27252739469 is an equidigital number, since it uses as much as digits as its factorization.

27252739469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280956174.

The product of its digits is 11430720, while the sum is 56.

The spelling of 27252739469 in words is "twenty-seven billion, two hundred fifty-two million, seven hundred thirty-nine thousand, four hundred sixty-nine".