2509126938 has 24 divisors (see below), whose sum is σ = 5569039476. Its totient is φ = 815976000.

The previous prime is 2509126937. The next prime is 2509126957. The reversal of 2509126938 is 8396219052.

2509126938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1963110249 + 546016689 = 44307^2 + 23367^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2509126893 and 2509126902.

It is not an unprimeable number, because it can be changed into a prime (2509126933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1699213 + ... + 1700688.

Almost surely, 2^2509126938 is an apocalyptic number.

2509126938 is an abundant number, since it is smaller than the sum of its proper divisors (3059912538).

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

2509126938 is a wasteful number, since it uses less digits than its factorization.

2509126938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3399950 (or 3399947 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 2509126938 is about 50091.1862307133. The cubic root of 2509126938 is about 1358.8584238841.

The spelling of 2509126938 in words is "two billion, five hundred nine million, one hundred twenty-six thousand, nine hundred thirty-eight".