27424629343609 has 3 divisors (see below), whose sum is σ = 27424634580463. Its totient is φ = 27424624106756.

The previous prime is 27424629343597. The next prime is 27424629343633. The reversal of 27424629343609 is 90634392642472.

The square root of 27424629343609 is 5236853.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 9626592155625 + 17798037187984 = 3102675^2 + 4218772^2 .

It is a de Polignac number, because none of the positive numbers 2^k-27424629343609 is a prime.

It is a super-2 number, since 2×27424629343609² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27424629353609) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2618427 + ... + 7855279.

Almost surely, 2^{27424629343609} is an apocalyptic number.

27424629343609 is the 5236853-rd square number.

27424629343609 is the 2618427-th centered octagonal number.

It is an amenable number.

27424629343609 is a deficient number, since it is larger than the sum of its proper divisors (5236854).

27424629343609 is an frugal number, since it uses more digits than its factorization.

27424629343609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10473706 (or 5236853 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 61.

The spelling of 27424629343609 in words is "twenty-seven trillion, four hundred twenty-four billion, six hundred twenty-nine million, three hundred forty-three thousand, six hundred nine".