2537634122866 has 4 divisors (see below), whose sum is σ = 3806451184302. Its totient is φ = 1268817061432.

The previous prime is 2537634122861. The next prime is 2537634122873. The reversal of 2537634122866 is 6682214367352.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 2365059515625 + 172574607241 = 1537875^2 + 415421^2 .

It is not an unprimeable number, because it can be changed into a prime (2537634122861) by changing a digit.

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 as a sum of consecutive naturals, namely, 634408530715 + ... + 634408530718.

Almost surely, 2^{2537634122866} is an apocalyptic number.

2537634122866 is a deficient number, since it is larger than the sum of its proper divisors (1268817061436).

2537634122866 is a wasteful number, since it uses less digits than its factorization.

2537634122866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268817061435.

The product of its digits is 17418240, while the sum is 55.

The spelling of 2537634122866 in words is "two trillion, five hundred thirty-seven billion, six hundred thirty-four million, one hundred twenty-two thousand, eight hundred sixty-six".