2140823686 has 16 divisors (see below), whose sum is σ = 3282301440. Its totient is φ = 1046976840.

The previous prime is 2140823681. The next prime is 2140823687. The reversal of 2140823686 is 6863280412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140823681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46410 + ... + 80221.

It is an arithmetic number, because the mean of its divisors is an integer number (205143840).

Almost surely, 2^2140823686 is an apocalyptic number.

2140823686 is a deficient number, since it is larger than the sum of its proper divisors (1141477754).

2140823686 is a wasteful number, since it uses less digits than its factorization.

2140823686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126819.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 2140823686 is about 46269.0359311711. The cubic root of 2140823686 is about 1288.8240562508.

The spelling of 2140823686 in words is "two billion, one hundred forty million, eight hundred twenty-three thousand, six hundred eighty-six".