2528351867 has 4 divisors (see below), whose sum is σ = 2529528360. Its totient is φ = 2527175376.

The previous prime is 2528351849. The next prime is 2528351873. The reversal of 2528351867 is 7681538252.

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 2528351867 - 2¹⁸ = 2528089723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2528351807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585017 + ... + 589322.

It is an arithmetic number, because the mean of its divisors is an integer number (632382090).

Almost surely, 2^2528351867 is an apocalyptic number.

2528351867 is a deficient number, since it is larger than the sum of its proper divisors (1176493).

2528351867 is a wasteful number, since it uses less digits than its factorization.

2528351867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176492.

The product of its digits is 806400, while the sum is 47.

The square root of 2528351867 is about 50282.7193675919. The cubic root of 2528351867 is about 1362.3201218304.

The spelling of 2528351867 in words is "two billion, five hundred twenty-eight million, three hundred fifty-one thousand, eight hundred sixty-seven".