2609020878 has 8 divisors (see below), whose sum is σ = 5218041768. Its totient is φ = 869673624.

The previous prime is 2609020871. The next prime is 2609020879. The reversal of 2609020878 is 8780209062.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

2609020878 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2609020871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217418401 + ... + 217418412.

It is an arithmetic number, because the mean of its divisors is an integer number (652255221).

Almost surely, 2^2609020878 is an apocalyptic number.

2609020878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2609020878 is a wasteful number, since it uses less digits than its factorization.

2609020878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434836818.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 2609020878 is about 51078.5755282976. The cubic root of 2609020878 is about 1376.6573299191.

The spelling of 2609020878 in words is "two billion, six hundred nine million, twenty thousand, eight hundred seventy-eight".