99542217268 has 24 divisors (see below), whose sum is σ = 187730397792. Its totient is φ = 45910332384.

The previous prime is 99542217263. The next prime is 99542217301. The reversal of 99542217268 is 86271224599.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99542217263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596530 + ... + 744937.

It is an arithmetic number, because the mean of its divisors is an integer number (7822099908).

Almost surely, 2^99542217268 is an apocalyptic number.

It is an amenable number.

99542217268 is a deficient number, since it is larger than the sum of its proper divisors (88188180524).

99542217268 is a wasteful number, since it uses less digits than its factorization.

99542217268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342911 (or 1342909 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 55.

It can be divided in two parts, 9954 and 2217268, that added together give a palindrome (2227222).

The spelling of 99542217268 in words is "ninety-nine billion, five hundred forty-two million, two hundred seventeen thousand, two hundred sixty-eight".