99867886851 has 8 divisors (see below), whose sum is σ = 138946625280. Its totient is φ = 63683869832.

The previous prime is 99867886829. The next prime is 99867886889. The reversal of 99867886851 is 15868876899.

It is a happy number.

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 99867886851 - 2¹⁴ = 99867870467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99867886801) 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, 723680271 + ... + 723680408.

It is an arithmetic number, because the mean of its divisors is an integer number (17368328160).

Almost surely, 2^99867886851 is an apocalyptic number.

99867886851 is a deficient number, since it is larger than the sum of its proper divisors (39078738429).

99867886851 is a wasteful number, since it uses less digits than its factorization.

99867886851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447360705.

The product of its digits is 418037760, while the sum is 75.

The spelling of 99867886851 in words is "ninety-nine billion, eight hundred sixty-seven million, eight hundred eighty-six thousand, eight hundred fifty-one".