2115425859 has 16 divisors (see below), whose sum is σ = 2849915904. Its totient is φ = 1395669600.

The previous prime is 2115425813. The next prime is 2115425863. The reversal of 2115425859 is 9585245112.

It is not a de Polignac number, because 2115425859 - 2¹⁶ = 2115360323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2115425859.

It is not an unprimeable number, because it can be changed into a prime (2115425869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139374 + ... + 153804.

It is an arithmetic number, because the mean of its divisors is an integer number (178119744).

Almost surely, 2^2115425859 is an apocalyptic number.

2115425859 is a deficient number, since it is larger than the sum of its proper divisors (734490045).

2115425859 is a wasteful number, since it uses less digits than its factorization.

2115425859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14938.

The product of its digits is 144000, while the sum is 42.

The square root of 2115425859 is about 45993.7589135744. The cubic root of 2115425859 is about 1283.7070794866.

The spelling of 2115425859 in words is "two billion, one hundred fifteen million, four hundred twenty-five thousand, eight hundred fifty-nine".