278058055578 has 16 divisors (see below), whose sum is σ = 556217676480. Its totient is φ = 92669090976.

The previous prime is 278058055559. The next prime is 278058055589. The reversal of 278058055578 is 875550850872.

278058055578 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 4196275 + ... + 4262022.

It is an arithmetic number, because the mean of its divisors is an integer number (34763604780).

Almost surely, 2^278058055578 is an apocalyptic number.

278058055578 is an abundant number, since it is smaller than the sum of its proper divisors (278159620902).

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

278058055578 is a wasteful number, since it uses less digits than its factorization.

278058055578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8463781.

The product of its (nonzero) digits is 31360000, while the sum is 60.

The spelling of 278058055578 in words is "two hundred seventy-eight billion, fifty-eight million, fifty-five thousand, five hundred seventy-eight".