2385688081 has 16 divisors (see below), whose sum is σ = 2898153216. Its totient is φ = 1917075456.

The previous prime is 2385688043. The next prime is 2385688093. The reversal of 2385688081 is 1808865832.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2385688081 - 2¹¹ = 2385686033 is a prime.

It is a super-2 number, since 2×2385688081² = 11383015239650925122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2385688001) 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, 8421 + ... + 69586.

It is an arithmetic number, because the mean of its divisors is an integer number (181134576).

Almost surely, 2^2385688081 is an apocalyptic number.

It is an amenable number.

2385688081 is a deficient number, since it is larger than the sum of its proper divisors (512465135).

2385688081 is a wasteful number, since it uses less digits than its factorization.

2385688081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78288.

The product of its (nonzero) digits is 737280, while the sum is 49.

The square root of 2385688081 is about 48843.5060269019. The cubic root of 2385688081 is about 1336.1992395988.

The spelling of 2385688081 in words is "two billion, three hundred eighty-five million, six hundred eighty-eight thousand, eighty-one".