9881094487 has 8 divisors (see below), whose sum is σ = 10878270480. Its totient is φ = 8900400960.

The previous prime is 9881094479. The next prime is 9881094497. The reversal of 9881094487 is 7844901889.

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

It is not a de Polignac number, because 9881094487 - 2³ = 9881094479 is a prime.

It is a super-2 number, since 2×9881094487² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9881094497) 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, 4119358 + ... + 4121755.

It is an arithmetic number, because the mean of its divisors is an integer number (1359783810).

Almost surely, 2^9881094487 is an apocalyptic number.

9881094487 is a deficient number, since it is larger than the sum of its proper divisors (997175993).

9881094487 is a wasteful number, since it uses less digits than its factorization.

9881094487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8241233.

The product of its (nonzero) digits is 4644864, while the sum is 58.

The square root of 9881094487 is about 99403.6945339558. The cubic root of 9881094487 is about 2145.8614809113.

The spelling of 9881094487 in words is "nine billion, eight hundred eighty-one million, ninety-four thousand, four hundred eighty-seven".