2658055778 has 16 divisors (see below), whose sum is σ = 4571049024. Its totient is φ = 1135571280.

The previous prime is 2658055739. The next prime is 2658055781. The reversal of 2658055778 is 8775508562.

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, 295028 + ... + 303903.

It is an arithmetic number, because the mean of its divisors is an integer number (285690564).

Almost surely, 2^2658055778 is an apocalyptic number.

2658055778 is a deficient number, since it is larger than the sum of its proper divisors (1912993246).

2658055778 is a wasteful number, since it uses less digits than its factorization.

2658055778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599257.

The product of its (nonzero) digits is 4704000, while the sum is 53.

The square root of 2658055778 is about 51556.3359636815. The cubic root of 2658055778 is about 1385.2283250363.

The spelling of 2658055778 in words is "two billion, six hundred fifty-eight million, fifty-five thousand, seven hundred seventy-eight".