2185360815 has 32 divisors (see below), whose sum is σ = 3817933056. Its totient is φ = 1058600960.

The previous prime is 2185360783. The next prime is 2185360873. The reversal of 2185360815 is 5180635812.

2185360815 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2185360815 - 2⁵ = 2185360783 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195364 + ... + 206246.

It is an arithmetic number, because the mean of its divisors is an integer number (119310408).

Almost surely, 2^2185360815 is an apocalyptic number.

2185360815 is a deficient number, since it is larger than the sum of its proper divisors (1632572241).

2185360815 is a wasteful number, since it uses less digits than its factorization.

2185360815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12119.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 2185360815 is about 46747.8428914105. The cubic root of 2185360815 is about 1297.7002367674.

The spelling of 2185360815 in words is "two billion, one hundred eighty-five million, three hundred sixty thousand, eight hundred fifteen".