99826865078 has 16 divisors (see below), whose sum is σ = 159758851824. Its totient is φ = 46618740480.

The previous prime is 99826865077. The next prime is 99826865093. The reversal of 99826865078 is 87056862899.

It is a junction number, because it is equal to n+sod(n) for n = 99826864999 and 99826865017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99826865071) 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, 11201975 + ... + 11210882.

It is an arithmetic number, because the mean of its divisors is an integer number (9984928239).

Almost surely, 2^99826865078 is an apocalyptic number.

99826865078 is a deficient number, since it is larger than the sum of its proper divisors (59931986746).

99826865078 is a wasteful number, since it uses less digits than its factorization.

99826865078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22413007.

The product of its (nonzero) digits is 104509440, while the sum is 68.

The spelling of 99826865078 in words is "ninety-nine billion, eight hundred twenty-six million, eight hundred sixty-five thousand, seventy-eight".