2534693818 has 4 divisors (see below), whose sum is σ = 3802040730. Its totient is φ = 1267346908.

The previous prime is 2534693801. The next prime is 2534693831. The reversal of 2534693818 is 8183964352.

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., 2517329929 + 17363889 = 50173^2 + 4167^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 as a sum of consecutive naturals, namely, 633673453 + ... + 633673456.

Almost surely, 2^2534693818 is an apocalyptic number.

2534693818 is a deficient number, since it is larger than the sum of its proper divisors (1267346912).

2534693818 is a wasteful number, since it uses less digits than its factorization.

2534693818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267346911.

The product of its digits is 1244160, while the sum is 49.

The square root of 2534693818 is about 50345.7427991682. The cubic root of 2534693818 is about 1363.4582220837.

The spelling of 2534693818 in words is "two billion, five hundred thirty-four million, six hundred ninety-three thousand, eight hundred eighteen".