99790937280 has 280 divisors, whose sum is σ = 357695814960. Its totient is φ = 26406881280.

The previous prime is 99790937251. The next prime is 99790937303. The reversal of 99790937280 is 8273909799.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3380826 + ... + 3410214.

Almost surely, 2^99790937280 is an apocalyptic number.

99790937280 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 99790937280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178847907480).

99790937280 is an abundant number, since it is smaller than the sum of its proper divisors (257904877680).

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

99790937280 is a wasteful number, since it uses less digits than its factorization.

99790937280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29549 (or 29530 counting only the distinct ones).

The product of its (nonzero) digits is 15431472, while the sum is 63.

The spelling of 99790937280 in words is "ninety-nine billion, seven hundred ninety million, nine hundred thirty-seven thousand, two hundred eighty".