6868443637 has 12 divisors (see below), whose sum is σ = 7653040780. Its totient is φ = 6158496960.

The previous prime is 6868443629. The next prime is 6868443643. The reversal of 6868443637 is 7363448686.

It can be written as a sum of positive squares in 2 ways, for example, as 1230536241 + 5637907396 = 35079^2 + 75086^2 .

It is not a de Polignac number, because 6868443637 - 2³ = 6868443629 is a prime.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868441637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 379962 + ... + 397627.

Almost surely, 2^6868443637 is an apocalyptic number.

It is an amenable number.

6868443637 is a deficient number, since it is larger than the sum of its proper divisors (784597143).

6868443637 is a wasteful number, since it uses less digits than its factorization.

6868443637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777684 (or 777673 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 55.

The square root of 6868443637 is about 82876.0739719251. The cubic root of 6868443637 is about 1900.8715887568.

The spelling of 6868443637 in words is "six billion, eight hundred sixty-eight million, four hundred forty-three thousand, six hundred thirty-seven".