278989882912 has 48 divisors (see below), whose sum is σ = 622644442560. Its totient is φ = 121987475712.

The previous prime is 278989882889. The next prime is 278989882943. The reversal of 278989882912 is 219288989872.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17640748 + ... + 17656555.

It is an arithmetic number, because the mean of its divisors is an integer number (12971759220).

Almost surely, 2^278989882912 is an apocalyptic number.

It is an amenable number.

278989882912 is an abundant number, since it is smaller than the sum of its proper divisors (343654559648).

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

278989882912 is a wasteful number, since it uses less digits than its factorization.

278989882912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35297345 (or 35297337 counting only the distinct ones).

The product of its digits is 167215104, while the sum is 73.

The spelling of 278989882912 in words is "two hundred seventy-eight billion, nine hundred eighty-nine million, eight hundred eighty-two thousand, nine hundred twelve".