99272787120 has 480 divisors, whose sum is σ = 370105811712. Its totient is φ = 23692935168.

The previous prime is 99272787113. The next prime is 99272787139. The reversal of 99272787120 is 2178727299.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 49709962 + ... + 49711958.

Almost surely, 2^99272787120 is an apocalyptic number.

99272787120 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99272787120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185052905856).

99272787120 is an abundant number, since it is smaller than the sum of its proper divisors (270833024592).

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

99272787120 is a wasteful number, since it uses less digits than its factorization.

99272787120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189 (or 2180 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The spelling of 99272787120 in words is "ninety-nine billion, two hundred seventy-two million, seven hundred eighty-seven thousand, one hundred twenty".