2521919426 has 16 divisors (see below), whose sum is σ = 4074706944. Its totient is φ = 1163723664.

The previous prime is 2521919377. The next prime is 2521919441. The reversal of 2521919426 is 6249191252.

2521919426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213881 + ... + 225363.

It is an arithmetic number, because the mean of its divisors is an integer number (254669184).

Almost surely, 2^2521919426 is an apocalyptic number.

2521919426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2521919426 is a deficient number, since it is larger than the sum of its proper divisors (1552787518).

2521919426 is a wasteful number, since it uses less digits than its factorization.

2521919426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19945.

The product of its digits is 77760, while the sum is 41.

The square root of 2521919426 is about 50218.7158935790. The cubic root of 2521919426 is about 1361.1638368651.

The spelling of 2521919426 in words is "two billion, five hundred twenty-one million, nine hundred nineteen thousand, four hundred twenty-six".