2683686861837 has 6 divisors (see below), whose sum is σ = 3876436578222. Its totient is φ = 1789124574552.

The previous prime is 2683686861733. The next prime is 2683686861847. The reversal of 2683686861837 is 7381686863862.

2683686861837 is a `hidden beast` number, since 2 + 6 + 8 + 368 + 6 + 86 + 183 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2078847796041 + 604839065796 = 1441821^2 + 777714^2 .

It is not a de Polignac number, because 2683686861837 - 2¹⁴ = 2683686845453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2683686861847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 149093714538 + ... + 149093714555.

It is an arithmetic number, because the mean of its divisors is an integer number (646072763037).

Almost surely, 2^{2683686861837} is an apocalyptic number.

It is an amenable number.

2683686861837 is a deficient number, since it is larger than the sum of its proper divisors (1192749716385).

2683686861837 is a wasteful number, since it uses less digits than its factorization.

2683686861837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298187429099 (or 298187429096 counting only the distinct ones).

The product of its digits is 668860416, while the sum is 72.

The spelling of 2683686861837 in words is "two trillion, six hundred eighty-three billion, six hundred eighty-six million, eight hundred sixty-one thousand, eight hundred thirty-seven".