9900961038 has 48 divisors (see below), whose sum is σ = 21562912800. Its totient is φ = 3283318080.

The previous prime is 9900961033. The next prime is 9900961061. The reversal of 9900961038 is 8301690099.

It is a junction number, because it is equal to n+sod(n) for n = 9900960984 and 9900961002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9900961033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3072268 + ... + 3075488.

It is an arithmetic number, because the mean of its divisors is an integer number (449227350).

Almost surely, 2^9900961038 is an apocalyptic number.

9900961038 is an abundant number, since it is smaller than the sum of its proper divisors (11661951762).

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

9900961038 is a wasteful number, since it uses less digits than its factorization.

9900961038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4057 (or 4054 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 9900961038 is about 99503.5729911243. The cubic root of 9900961038 is about 2147.2986472027.

The spelling of 9900961038 in words is "nine billion, nine hundred million, nine hundred sixty-one thousand, thirty-eight".