278055055012 has 12 divisors (see below), whose sum is σ = 556110110080. Its totient is φ = 119166452136.

The previous prime is 278055055007. The next prime is 278055055027. The reversal of 278055055012 is 210550550872.

278055055012 is an admirable number.

It is a super-2 number, since 2×278055055012² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4965268812 + ... + 4965268867.

Almost surely, 2^278055055012 is an apocalyptic number.

It is an amenable number.

278055055012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

278055055012 is a wasteful number, since it uses less digits than its factorization.

278055055012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9930537690 (or 9930537688 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 40.

The spelling of 278055055012 in words is "two hundred seventy-eight billion, fifty-five million, fifty-five thousand, twelve".