249446463784 has 128 divisors (see below), whose sum is σ = 548481024000. Its totient is φ = 104160950784.

The previous prime is 249446463757. The next prime is 249446463811. The reversal of 249446463784 is 487364644942.

It is an interprime number because it is at equal distance from previous prime (249446463757) and next prime (249446463811).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 114476407 + ... + 114478585.

It is an arithmetic number, because the mean of its divisors is an integer number (4285008000).

Almost surely, 2^249446463784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249446463784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274240512000).

249446463784 is an abundant number, since it is smaller than the sum of its proper divisors (299034560216).

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

249446463784 is a wasteful number, since it uses less digits than its factorization.

249446463784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607 (or 2603 counting only the distinct ones).

The product of its digits is 111476736, while the sum is 61.

The spelling of 249446463784 in words is "two hundred forty-nine billion, four hundred forty-six million, four hundred sixty-three thousand, seven hundred eighty-four".