6986822091 has 16 divisors (see below), whose sum is σ = 9436694400. Its totient is φ = 4597596608.

The previous prime is 6986822053. The next prime is 6986822093. The reversal of 6986822091 is 1902286896.

It is a cyclic number.

It is not a de Polignac number, because 6986822091 - 2⁹ = 6986821579 is a prime.

It is a super-2 number, since 2×6986822091² = 97631365862571224562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6986822093) 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, 134440 + ... + 179018.

It is an arithmetic number, because the mean of its divisors is an integer number (589793400).

Almost surely, 2^6986822091 is an apocalyptic number.

6986822091 is a deficient number, since it is larger than the sum of its proper divisors (2449872309).

6986822091 is a wasteful number, since it uses less digits than its factorization.

6986822091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45258.

The product of its (nonzero) digits is 746496, while the sum is 51.

The square root of 6986822091 is about 83587.2124849250. The cubic root of 6986822091 is about 1911.7300271344.

The spelling of 6986822091 in words is "six billion, nine hundred eighty-six million, eight hundred twenty-two thousand, ninety-one".