2489652078 has 16 divisors (see below), whose sum is σ = 5113880400. Its totient is φ = 807454656.

The previous prime is 2489652073. The next prime is 2489652083. The reversal of 2489652078 is 8702569842.

It is an interprime number because it is at equal distance from previous prime (2489652073) and next prime (2489652083).

It is a self number, because there is not a number n which added to its sum of digits gives 2489652078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2489652071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5607103 + ... + 5607546.

It is an arithmetic number, because the mean of its divisors is an integer number (319617525).

Almost surely, 2^2489652078 is an apocalyptic number.

2489652078 is an abundant number, since it is smaller than the sum of its proper divisors (2624228322).

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

2489652078 is a wasteful number, since it uses less digits than its factorization.

2489652078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11214691.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The square root of 2489652078 is about 49896.4134783253. The cubic root of 2489652078 is about 1355.3336465910. Note that the first 3 decimals are identical.

The spelling of 2489652078 in words is "two billion, four hundred eighty-nine million, six hundred fifty-two thousand, seventy-eight".