27429505490 has 8 divisors (see below), whose sum is σ = 49373109900. Its totient is φ = 10971802192.

The previous prime is 27429505469. The next prime is 27429505517. The reversal of 27429505490 is 9450592472.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25202515009 + 2226990481 = 158753^2 + 47191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

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, 1371475265 + ... + 1371475284.

Almost surely, 2^27429505490 is an apocalyptic number.

27429505490 is a deficient number, since it is larger than the sum of its proper divisors (21943604410).

27429505490 is a wasteful number, since it uses less digits than its factorization.

27429505490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742950556.

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 27429505490 in words is "twenty-seven billion, four hundred twenty-nine million, five hundred five thousand, four hundred ninety".