9909942610 has 16 divisors (see below), whose sum is σ = 18613457856. Its totient is φ = 3791630128.

The previous prime is 9909942571. The next prime is 9909942631. The reversal of 9909942610 is 162499099.

9909942610 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9909942610² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21543124 + ... + 21543583.

It is an arithmetic number, because the mean of its divisors is an integer number (1163341116).

Almost surely, 2^9909942610 is an apocalyptic number.

9909942610 is a deficient number, since it is larger than the sum of its proper divisors (8703515246).

9909942610 is a wasteful number, since it uses less digits than its factorization.

9909942610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43086737.

The product of its (nonzero) digits is 314928, while the sum is 49.

The square root of 9909942610 is about 99548.6946674842. The cubic root of 9909942610 is about 2147.9477521573.

The spelling of 9909942610 in words is "nine billion, nine hundred nine million, nine hundred forty-two thousand, six hundred ten".