2534391866 has 8 divisors (see below), whose sum is σ = 3804344724. Its totient is φ = 1266276960.

The previous prime is 2534391829. The next prime is 2534391901. The reversal of 2534391866 is 6681934352.

It can be written as a sum of positive squares in 2 ways, for example, as 2525565025 + 8826841 = 50255^2 + 2971^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2534391866.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456035 + ... + 461558.

Almost surely, 2^2534391866 is an apocalyptic number.

2534391866 is a deficient number, since it is larger than the sum of its proper divisors (1269952858).

2534391866 is a wasteful number, since it uses less digits than its factorization.

2534391866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918976.

The product of its digits is 933120, while the sum is 47.

The square root of 2534391866 is about 50342.7439260118. The cubic root of 2534391866 is about 1363.4040780969.

The spelling of 2534391866 in words is "two billion, five hundred thirty-four million, three hundred ninety-one thousand, eight hundred sixty-six".