2638998752 has 96 divisors (see below), whose sum is σ = 5911234560. Its totient is φ = 1151055360.

The previous prime is 2638998751. The next prime is 2638998779. The reversal of 2638998752 is 2578998362.

It is a junction number, because it is equal to n+sod(n) for n = 2638998691 and 2638998700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638998751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 552149 + ... + 556907.

It is an arithmetic number, because the mean of its divisors is an integer number (61575360).

Almost surely, 2^2638998752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2638998752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2955617280).

2638998752 is an abundant number, since it is smaller than the sum of its proper divisors (3272235808).

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

2638998752 is a wasteful number, since it uses less digits than its factorization.

2638998752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4856 (or 4848 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 59.

The square root of 2638998752 is about 51371.1860092796. The cubic root of 2638998752 is about 1381.9099004889.

The spelling of 2638998752 in words is "two billion, six hundred thirty-eight million, nine hundred ninety-eight thousand, seven hundred fifty-two".