9959801000 has 32 divisors (see below), whose sum is σ = 23305936680. Its totient is φ = 3983920000.

The previous prime is 9959800967. The next prime is 9959801003. The reversal of 9959801000 is 1089599.

It can be written as a sum of positive squares in 4 ways, for example, as 6506358244 + 3453442756 = 80662^2 + 58766^2 .

It is not an unprimeable number, because it can be changed into a prime (9959801003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4978901 + ... + 4980900.

Almost surely, 2^9959801000 is an apocalyptic number.

It is an amenable number.

9959801000 is an abundant number, since it is smaller than the sum of its proper divisors (13346135680).

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

9959801000 is a wasteful number, since it uses less digits than its factorization.

9959801000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9959822 (or 9959808 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 41.

The square root of 9959801000 is about 99798.8025980272. The cubic root of 9959801000 is about 2151.5439423890.

The spelling of 9959801000 in words is "nine billion, nine hundred fifty-nine million, eight hundred one thousand".