9907630997690 has 16 divisors (see below), whose sum is σ = 18126092121480. Its totient is φ = 3898084326720.

The previous prime is 9907630997687. The next prime is 9907630997699. The reversal of 9907630997690 is 967990367099.

It can be written as a sum of positive squares in 4 ways, for example, as 2074668617641 + 7832962380049 = 1440371^2 + 2798743^2 .

It is a super-2 number, since 2×9907630997690² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9907630997699) 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, 8121008405 + ... + 8121009624.

Almost surely, 2^{9907630997690} is an apocalyptic number.

9907630997690 is a deficient number, since it is larger than the sum of its proper divisors (8218461123790).

9907630997690 is a wasteful number, since it uses less digits than its factorization.

9907630997690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16242018097.

The product of its (nonzero) digits is 312487308, while the sum is 74.

The spelling of 9907630997690 in words is "nine trillion, nine hundred seven billion, six hundred thirty million, nine hundred ninety-seven thousand, six hundred ninety".