249889576452 has 12 divisors (see below), whose sum is σ = 583075678416. Its totient is φ = 83296525480.

The previous prime is 249889576451. The next prime is 249889576529. The reversal of 249889576452 is 254675988942.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (249889576451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10412065674 + ... + 10412065697.

It is an arithmetic number, because the mean of its divisors is an integer number (48589639868).

Almost surely, 2^249889576452 is an apocalyptic number.

It is an amenable number.

249889576452 is an abundant number, since it is smaller than the sum of its proper divisors (333186101964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249889576452 is a wasteful number, since it uses less digits than its factorization.

249889576452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20824131378 (or 20824131376 counting only the distinct ones).

The product of its digits is 348364800, while the sum is 69.

The spelling of 249889576452 in words is "two hundred forty-nine billion, eight hundred eighty-nine million, five hundred seventy-six thousand, four hundred fifty-two".