7995438691 has 8 divisors (see below), whose sum is σ = 8553036240. Its totient is φ = 7447538688.

The previous prime is 7995438683. The next prime is 7995438701. The reversal of 7995438691 is 1968345997.

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 7995438691 - 2³ = 7995438683 is a prime.

It is a super-3 number, since 3×7995438691³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7995438091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2422681 + ... + 2425978.

It is an arithmetic number, because the mean of its divisors is an integer number (1069129530).

Almost surely, 2^7995438691 is an apocalyptic number.

7995438691 is a deficient number, since it is larger than the sum of its proper divisors (557597549).

7995438691 is a wasteful number, since it uses less digits than its factorization.

7995438691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4848773.

The product of its digits is 14696640, while the sum is 61.

The square root of 7995438691 is about 89417.2169719009. The cubic root of 7995438691 is about 1999.6198186523.

The spelling of 7995438691 in words is "seven billion, nine hundred ninety-five million, four hundred thirty-eight thousand, six hundred ninety-one".