280880345088 has 416 divisors, whose sum is σ = 957484651520. Its totient is φ = 79705866240.

The previous prime is 280880345087. The next prime is 280880345113. The reversal of 280880345088 is 880543088082.

280880345088 is a `hidden beast` number, since 28 + 0 + 8 + 80 + 34 + 508 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280880345087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121539453 + ... + 121541763.

Almost surely, 2^280880345088 is an apocalyptic number.

280880345088 is a gapful number since it is divisible by the number (28) 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 280880345088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (478742325760).

280880345088 is an abundant number, since it is smaller than the sum of its proper divisors (676604306432).

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

280880345088 is a wasteful number, since it uses less digits than its factorization.

280880345088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508 (or 2480 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 54.

The spelling of 280880345088 in words is "two hundred eighty billion, eight hundred eighty million, three hundred forty-five thousand, eighty-eight".