2142676685 has 16 divisors (see below), whose sum is σ = 2728794096. Its totient is φ = 1609555968.

The previous prime is 2142676681. The next prime is 2142676703. The reversal of 2142676685 is 5866762412.

It can be written as a sum of positive squares in 8 ways, for example, as 11377129 + 2131299556 = 3373^2 + 46166^2 .

It is a cyclic number.

It is not a de Polignac number, because 2142676685 - 2² = 2142676681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142676681) 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, 7697 + ... + 65913.

It is an arithmetic number, because the mean of its divisors is an integer number (170549631).

Almost surely, 2^2142676685 is an apocalyptic number.

It is an amenable number.

2142676685 is a deficient number, since it is larger than the sum of its proper divisors (586117411).

2142676685 is a wasteful number, since it uses less digits than its factorization.

2142676685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58672.

The product of its digits is 967680, while the sum is 47.

The square root of 2142676685 is about 46289.0557799573. The cubic root of 2142676685 is about 1289.1957980557.

The spelling of 2142676685 in words is "two billion, one hundred forty-two million, six hundred seventy-six thousand, six hundred eighty-five".