99508827820 has 48 divisors (see below), whose sum is σ = 223926661728. Its totient is φ = 37010785280.

The previous prime is 99508827811. The next prime is 99508827829. The reversal of 99508827820 is 2872880599.

It is an interprime number because it is at equal distance from previous prime (99508827811) and next prime (99508827829).

It is a super-3 number, since 3×99508827820³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (99508827829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1734871 + ... + 1791310.

It is an arithmetic number, because the mean of its divisors is an integer number (4665138786).

Almost surely, 2^99508827820 is an apocalyptic number.

It is an amenable number.

99508827820 is an abundant number, since it is smaller than the sum of its proper divisors (124417833908).

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

99508827820 is a wasteful number, since it uses less digits than its factorization.

99508827820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3526290 (or 3526288 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 58.

The spelling of 99508827820 in words is "ninety-nine billion, five hundred eight million, eight hundred twenty-seven thousand, eight hundred twenty".