4026569778 has 96 divisors (see below), whose sum is σ = 11279923200. Its totient is φ = 1045852560.

The previous prime is 4026569777. The next prime is 4026569783. The reversal of 4026569778 is 8779656204.

4026569778 is a `hidden beast` number, since 4 + 0 + 2 + 6 + 569 + 7 + 78 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (4026569777) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16378 + ... + 91221.

It is an arithmetic number, because the mean of its divisors is an integer number (117499200).

Almost surely, 2^4026569778 is an apocalyptic number.

4026569778 is an abundant number, since it is smaller than the sum of its proper divisors (7253353422).

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

4026569778 is a wasteful number, since it uses less digits than its factorization.

4026569778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107634 (or 107622 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The square root of 4026569778 is about 63455.2580800047. The cubic root of 4026569778 is about 1590.9080395311.

The spelling of 4026569778 in words is "four billion, twenty-six million, five hundred sixty-nine thousand, seven hundred seventy-eight".