6943522986 has 40 divisors (see below), whose sum is σ = 15607831140. Its totient is φ = 2307189312.

The previous prime is 6943522981. The next prime is 6943522987. The reversal of 6943522986 is 6892253496.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6048017361 + 895505625 = 77769^2 + 29925^2 .

It is a super-2 number, since 2×6943522986² = 96425022914220712392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (6943522981) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16251 + ... + 118958.

Almost surely, 2^6943522986 is an apocalyptic number.

6943522986 is an abundant number, since it is smaller than the sum of its proper divisors (8664308154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6943522986 is a wasteful number, since it uses less digits than its factorization.

6943522986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135540 (or 135531 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The square root of 6943522986 is about 83327.8043992520. The cubic root of 6943522986 is about 1907.7726826612.

The spelling of 6943522986 in words is "six billion, nine hundred forty-three million, five hundred twenty-two thousand, nine hundred eighty-six".