249660894624 has 96 divisors (see below), whose sum is σ = 662225445504. Its totient is φ = 82350858240.

The previous prime is 249660894619. The next prime is 249660894641. The reversal of 249660894624 is 426498066942.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6826852 + ... + 6863324.

It is an arithmetic number, because the mean of its divisors is an integer number (6898181724).

Almost surely, 2^249660894624 is an apocalyptic number.

249660894624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249660894624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331112722752).

249660894624 is an abundant number, since it is smaller than the sum of its proper divisors (412564550880).

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

249660894624 is a wasteful number, since it uses less digits than its factorization.

249660894624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37230 (or 37222 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 60.

The spelling of 249660894624 in words is "two hundred forty-nine billion, six hundred sixty million, eight hundred ninety-four thousand, six hundred twenty-four".