7986055681 has 8 divisors (see below), whose sum is σ = 8001240128. Its totient is φ = 7970886000.

The previous prime is 7986055639. The next prime is 7986055697. The reversal of 7986055681 is 1865506897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7986055681 - 2²⁷ = 7851837953 is a prime.

It is a super-2 number, since 2×7986055681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7986055621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1872091 + ... + 1876351.

It is an arithmetic number, because the mean of its divisors is an integer number (1000155016).

Almost surely, 2^7986055681 is an apocalyptic number.

It is an amenable number.

7986055681 is a deficient number, since it is larger than the sum of its proper divisors (15184447).

7986055681 is a wasteful number, since it uses less digits than its factorization.

7986055681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7383.

The product of its (nonzero) digits is 3628800, while the sum is 55.

The square root of 7986055681 is about 89364.7339894211. The cubic root of 7986055681 is about 1998.8372976092.

The spelling of 7986055681 in words is "seven billion, nine hundred eighty-six million, fifty-five thousand, six hundred eighty-one".