99768584019 has 24 divisors (see below), whose sum is σ = 144218947440. Its totient is φ = 61321732992.

The previous prime is 99768584017. The next prime is 99768584077. The reversal of 99768584019 is 91048586799.

It is not a de Polignac number, because 99768584019 - 2¹ = 99768584017 is a prime.

It is a super-2 number, since 2×99768584019² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99768584017) 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, 301617 + ... + 538989.

It is an arithmetic number, because the mean of its divisors is an integer number (6009122810).

Almost surely, 2^99768584019 is an apocalyptic number.

99768584019 is a deficient number, since it is larger than the sum of its proper divisors (44450363421).

99768584019 is a wasteful number, since it uses less digits than its factorization.

99768584019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238231 (or 238218 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 66.

The spelling of 99768584019 in words is "ninety-nine billion, seven hundred sixty-eight million, five hundred eighty-four thousand, nineteen".