2127281788634 has 8 divisors (see below), whose sum is σ = 3268750065588. Its totient is φ = 1037698433440.

The previous prime is 2127281788613. The next prime is 2127281788649. The reversal of 2127281788634 is 4368871827212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1952595406609 + 174686382025 = 1397353^2 + 417955^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12971230337 + ... + 12971230500.

Almost surely, 2^{2127281788634} is an apocalyptic number.

2127281788634 is a deficient number, since it is larger than the sum of its proper divisors (1141468276954).

2127281788634 is a wasteful number, since it uses less digits than its factorization.

2127281788634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25942460880.

The product of its digits is 14450688, while the sum is 59.

The spelling of 2127281788634 in words is "two trillion, one hundred twenty-seven billion, two hundred eighty-one million, seven hundred eighty-eight thousand, six hundred thirty-four".