2089566078 has 32 divisors (see below), whose sum is σ = 4408992000. Its totient is φ = 658377216.

The previous prime is 2089566071. The next prime is 2089566103. The reversal of 2089566078 is 8706659802.

It is a self number, because there is not a number n which added to its sum of digits gives 2089566078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2089566071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30775 + ... + 71597.

It is an arithmetic number, because the mean of its divisors is an integer number (137781000).

Almost surely, 2^2089566078 is an apocalyptic number.

2089566078 is an abundant number, since it is smaller than the sum of its proper divisors (2319425922).

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

2089566078 is a wasteful number, since it uses less digits than its factorization.

2089566078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41296.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 2089566078 is about 45711.7717661436. The cubic root of 2089566078 is about 1278.4547755636.

The spelling of 2089566078 in words is "two billion, eighty-nine million, five hundred sixty-six thousand, seventy-eight".