9900961002 has 24 divisors (see below), whose sum is σ = 21570609060. Its totient is φ = 3282085440.

The previous prime is 9900960989. The next prime is 9900961013. The reversal of 9900961002 is 2001690099.

It can be written as a sum of positive squares in 2 ways, for example, as 8280818001 + 1620143001 = 90999^2 + 40251^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1516227 + ... + 1522742.

Almost surely, 2^9900961002 is an apocalyptic number.

9900961002 is an abundant number, since it is smaller than the sum of its proper divisors (11669648058).

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

9900961002 is a wasteful number, since it uses less digits than its factorization.

9900961002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039158 (or 3039155 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 9900961002 is about 99503.5728102263. The cubic root of 9900961002 is about 2147.2986446001.

The spelling of 9900961002 in words is "nine billion, nine hundred million, nine hundred sixty-one thousand, two".