278888088960 has 256 divisors, whose sum is σ = 1063708632000. Its totient is φ = 68649320448.

The previous prime is 278888088833. The next prime is 278888088961. The reversal of 278888088960 is 69880888872.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278888088961) 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, 396105 + ... + 845384.

Almost surely, 2^278888088960 is an apocalyptic number.

278888088960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

278888088960 is an abundant number, since it is smaller than the sum of its proper divisors (784820543040).

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

278888088960 is a wasteful number, since it uses less digits than its factorization.

278888088960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241530 (or 1241512 counting only the distinct ones).

The product of its (nonzero) digits is 198180864, while the sum is 72.

The spelling of 278888088960 in words is "two hundred seventy-eight billion, eight hundred eighty-eight million, eighty-eight thousand, nine hundred sixty".