2528637863 has 4 divisors (see below), whose sum is σ = 2531961408. Its totient is φ = 2525314320.

The previous prime is 2528637841. The next prime is 2528637869. The reversal of 2528637863 is 3687368252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2528637863 - 2¹⁰ = 2528636839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2528637869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1660631 + ... + 1662152.

It is an arithmetic number, because the mean of its divisors is an integer number (632990352).

Almost surely, 2^2528637863 is an apocalyptic number.

2528637863 is a deficient number, since it is larger than the sum of its proper divisors (3323545).

2528637863 is an equidigital number, since it uses as much as digits as its factorization.

2528637863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3323544.

The product of its digits is 2903040, while the sum is 50.

The square root of 2528637863 is about 50285.5631667778. The cubic root of 2528637863 is about 1362.3714864395.

The spelling of 2528637863 in words is "two billion, five hundred twenty-eight million, six hundred thirty-seven thousand, eight hundred sixty-three".