278055028055 has 16 divisors (see below), whose sum is σ = 383462968320. Its totient is φ = 189601125792.

The previous prime is 278055027973. The next prime is 278055028067. The reversal of 278055028055 is 550820550872.

It is a cyclic number.

It is not a de Polignac number, because 278055028055 - 2¹² = 278055023959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22184879 + ... + 22197408.

It is an arithmetic number, because the mean of its divisors is an integer number (23966435520).

Almost surely, 2^278055028055 is an apocalyptic number.

278055028055 is a deficient number, since it is larger than the sum of its proper divisors (105407940265).

278055028055 is a wasteful number, since it uses less digits than its factorization.

278055028055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44382478.

The product of its (nonzero) digits is 1120000, while the sum is 47.

The spelling of 278055028055 in words is "two hundred seventy-eight billion, fifty-five million, twenty-eight thousand, fifty-five".