4086969981 has 8 divisors (see below), whose sum is σ = 5686219200. Its totient is φ = 2606183712.

The previous prime is 4086969961. The next prime is 4086969989. The reversal of 4086969981 is 1899696804.

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

It is not a de Polignac number, because 4086969981 - 2⁷ = 4086969853 is a prime.

It is a super-2 number, since 2×4086969981² = 33406647251190280722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4086969989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29615656 + ... + 29615793.

It is an arithmetic number, because the mean of its divisors is an integer number (710777400).

Almost surely, 2^4086969981 is an apocalyptic number.

It is an amenable number.

4086969981 is a deficient number, since it is larger than the sum of its proper divisors (1599249219).

4086969981 is a wasteful number, since it uses less digits than its factorization.

4086969981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59231475.

The product of its (nonzero) digits is 6718464, while the sum is 60.

The square root of 4086969981 is about 63929.4140517493. The cubic root of 4086969981 is about 1598.8233511741.

The spelling of 4086969981 in words is "four billion, eighty-six million, nine hundred sixty-nine thousand, nine hundred eighty-one".