280937378048 has 144 divisors (see below), whose sum is σ = 595600669440. Its totient is φ = 131885107200.

The previous prime is 280937378041. The next prime is 280937378069. The reversal of 280937378048 is 840873739082.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (280937378041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339706211 + ... + 339707037.

It is an arithmetic number, because the mean of its divisors is an integer number (4136115760).

Almost surely, 2^280937378048 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 280937378048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297800334720).

280937378048 is an abundant number, since it is smaller than the sum of its proper divisors (314663291392).

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

280937378048 is a wasteful number, since it uses less digits than its factorization.

280937378048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404 (or 1390 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 59.

The spelling of 280937378048 in words is "two hundred eighty billion, nine hundred thirty-seven million, three hundred seventy-eight thousand, forty-eight".