278055054988 has 24 divisors (see below), whose sum is σ = 495181490832. Its totient is φ = 136589451264.

The previous prime is 278055054967. The next prime is 278055055007. The reversal of 278055054988 is 889450550872.

It is a super-2 number, since 2×278055054988² (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 7 ways as a sum of consecutive naturals, for example, 1777570 + ... + 1927657.

It is an arithmetic number, because the mean of its divisors is an integer number (20632562118).

Almost surely, 2^278055054988 is an apocalyptic number.

It is an amenable number.

278055054988 is a deficient number, since it is larger than the sum of its proper divisors (217126435844).

278055054988 is a wasteful number, since it uses less digits than its factorization.

278055054988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3705561 (or 3705559 counting only the distinct ones).

The product of its (nonzero) digits is 32256000, while the sum is 61.

The spelling of 278055054988 in words is "two hundred seventy-eight billion, fifty-five million, fifty-four thousand, nine hundred eighty-eight".