2526661398 has 32 divisors (see below), whose sum is σ = 5074767072. Its totient is φ = 838656000.

The previous prime is 2526661387. The next prime is 2526661399. The reversal of 2526661398 is 8931666252.

2526661398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2526661399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2103198 + ... + 2104398.

It is an arithmetic number, because the mean of its divisors is an integer number (158586471).

Almost surely, 2^2526661398 is an apocalyptic number.

2526661398 is an abundant number, since it is smaller than the sum of its proper divisors (2548105674).

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

2526661398 is a wasteful number, since it uses less digits than its factorization.

2526661398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400.

The product of its digits is 933120, while the sum is 48.

The square root of 2526661398 is about 50265.9069151249. The cubic root of 2526661398 is about 1362.0164360695.

The spelling of 2526661398 in words is "two billion, five hundred twenty-six million, six hundred sixty-one thousand, three hundred ninety-eight".