2638326570 has 64 divisors (see below), whose sum is σ = 6937467264. Its totient is φ = 636830720.

The previous prime is 2638326569. The next prime is 2638326601. The reversal of 2638326570 is 756238362.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59734 + ... + 94046.

It is an arithmetic number, because the mean of its divisors is an integer number (108397926).

Almost surely, 2^2638326570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2638326570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3468733632).

2638326570 is an abundant number, since it is smaller than the sum of its proper divisors (4299140694).

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

2638326570 is a wasteful number, since it uses less digits than its factorization.

2638326570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34567.

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 2638326570 is about 51364.6431896494. The cubic root of 2638326570 is about 1381.7925613102.

The spelling of 2638326570 in words is "two billion, six hundred thirty-eight million, three hundred twenty-six thousand, five hundred seventy".