2542009886 has 16 divisors (see below), whose sum is σ = 4322446800. Its totient is φ = 1111485888.

The previous prime is 2542009879. The next prime is 2542009891. The reversal of 2542009886 is 6889002452.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2572391 + ... + 2573378.

It is an arithmetic number, because the mean of its divisors is an integer number (270152925).

Almost surely, 2^2542009886 is an apocalyptic number.

2542009886 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2542009886 is a deficient number, since it is larger than the sum of its proper divisors (1780436914).

2542009886 is a wasteful number, since it uses less digits than its factorization.

2542009886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5145803.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 2542009886 is about 50418.3487036218. The cubic root of 2542009886 is about 1364.7687776263.

The spelling of 2542009886 in words is "two billion, five hundred forty-two million, nine thousand, eight hundred eighty-six".