99814407819 has 24 divisors (see below), whose sum is σ = 154967847120. Its totient is φ = 56980191744.

The previous prime is 99814407811. The next prime is 99814407829. The reversal of 99814407819 is 91870441899.

It is not a de Polignac number, because 99814407819 - 2³ = 99814407811 is a prime.

It is a super-2 number, since 2×99814407819² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99814407811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 188154 + ... + 484799.

It is an arithmetic number, because the mean of its divisors is an integer number (6456993630).

Almost surely, 2^99814407819 is an apocalyptic number.

99814407819 is a deficient number, since it is larger than the sum of its proper divisors (55153439301).

99814407819 is a wasteful number, since it uses less digits than its factorization.

99814407819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673979 (or 673972 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 60.

The spelling of 99814407819 in words is "ninety-nine billion, eight hundred fourteen million, four hundred seven thousand, eight hundred nineteen".