99767089422 has 448 divisors, whose sum is σ = 303658274304. Its totient is φ = 23730174720.

The previous prime is 99767089399. The next prime is 99767089441. The reversal of 99767089422 is 22498076799.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 99767089422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 287513053 + ... + 287513399.

It is an arithmetic number, because the mean of its divisors is an integer number (677808648).

Almost surely, 2^99767089422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99767089422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151829137152).

99767089422 is an abundant number, since it is smaller than the sum of its proper divisors (203891184882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99767089422 is a wasteful number, since it uses less digits than its factorization.

99767089422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 99767089422 in words is "ninety-nine billion, seven hundred sixty-seven million, eighty-nine thousand, four hundred twenty-two".