249476040899 has 4 divisors (see below), whose sum is σ = 255277809336. Its totient is φ = 243674272464.

The previous prime is 249476040889. The next prime is 249476040923. The reversal of 249476040899 is 998040674942.

249476040899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 249476040899 - 2⁸ = 249476040643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249476040839) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2900884154 + ... + 2900884239.

It is an arithmetic number, because the mean of its divisors is an integer number (63819452334).

Almost surely, 2^249476040899 is an apocalyptic number.

249476040899 is a deficient number, since it is larger than the sum of its proper divisors (5801768437).

249476040899 is an equidigital number, since it uses as much as digits as its factorization.

249476040899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5801768436.

The product of its (nonzero) digits is 31352832, while the sum is 62.

The spelling of 249476040899 in words is "two hundred forty-nine billion, four hundred seventy-six million, forty thousand, eight hundred ninety-nine".