2503916866 has 16 divisors (see below), whose sum is σ = 4107066048. Its totient is φ = 1135436400.

The previous prime is 2503916861. The next prime is 2503916923. The reversal of 2503916866 is 6686193052.

It is not an unprimeable number, because it can be changed into a prime (2503916861) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 125910 + ... + 144433.

It is an arithmetic number, because the mean of its divisors is an integer number (256691628).

Almost surely, 2^2503916866 is an apocalyptic number.

2503916866 is a deficient number, since it is larger than the sum of its proper divisors (1603149182).

2503916866 is a wasteful number, since it uses less digits than its factorization.

2503916866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270777.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 2503916866 is about 50039.1533301674. The cubic root of 2503916866 is about 1357.9172391205.

It can be divided in two parts, 25039 and 16866, that added together give a triangular number (41905 = T₂₈₉).

The spelling of 2503916866 in words is "two billion, five hundred three million, nine hundred sixteen thousand, eight hundred sixty-six".