2176738985 has 32 divisors (see below), whose sum is σ = 2742284160. Its totient is φ = 1656571392.

The previous prime is 2176738969. The next prime is 2176738999. The reversal of 2176738985 is 5898376712.

2176738985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2176738985 - 2⁴ = 2176738969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2176738985.

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, 4762877 + ... + 4763333.

It is an arithmetic number, because the mean of its divisors is an integer number (85696380).

Almost surely, 2^2176738985 is an apocalyptic number.

It is an amenable number.

2176738985 is a deficient number, since it is larger than the sum of its proper divisors (565545175).

2176738985 is a wasteful number, since it uses less digits than its factorization.

2176738985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905.

The product of its digits is 5080320, while the sum is 56.

The square root of 2176738985 is about 46655.5354164969. The cubic root of 2176738985 is about 1295.9913965875.

The spelling of 2176738985 in words is "two billion, one hundred seventy-six million, seven hundred thirty-eight thousand, nine hundred eighty-five".