99684811848699 has 96 divisors (see below), whose sum is σ = 181524707320320. Its totient is φ = 51206652057600.

The previous prime is 99684811848697. The next prime is 99684811848773.

99684811848699 is a `hidden beast` number, since 9 + 9 + 6 + 8 + 4 + 8 + 118 + 486 + 9 + 9 = 666.

99684811848699 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 99684811848699 - 2¹ = 99684811848697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99684811848697) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 78082597 + ... + 79348985.

It is an arithmetic number, because the mean of its divisors is an integer number (1890882367920).

Almost surely, 2^{99684811848699} is an apocalyptic number.

99684811848699 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

99684811848699 is a deficient number, since it is larger than the sum of its proper divisors (81839895471621).

99684811848699 is a wasteful number, since it uses less digits than its factorization.

99684811848699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267681 (or 1267678 counting only the distinct ones).

The product of its digits is 15479341056, while the sum is 90.

The spelling of 99684811848699 in words is "ninety-nine trillion, six hundred eighty-four billion, eight hundred eleven million, eight hundred forty-eight thousand, six hundred ninety-nine".