249648422912 has 224 divisors, whose sum is σ = 581295052800. Its totient is φ = 105009315840.

The previous prime is 249648422887. The next prime is 249648422921. The reversal of 249648422912 is 219224846942.

It is a tau number, because it is divible by the number of its divisors (224).

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, 1254514589 + ... + 1254514787.

It is an arithmetic number, because the mean of its divisors is an integer number (2595067200).

Almost surely, 2^249648422912 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 249648422912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290647526400).

249648422912 is an abundant number, since it is smaller than the sum of its proper divisors (331646629888).

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

249648422912 is a wasteful number, since it uses less digits than its factorization.

249648422912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 506 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 53.

The spelling of 249648422912 in words is "two hundred forty-nine billion, six hundred forty-eight million, four hundred twenty-two thousand, nine hundred twelve".