9947668698 has 48 divisors (see below), whose sum is σ = 24298270080. Its totient is φ = 3014443080.

The previous prime is 9947668697. The next prime is 9947668699. The reversal of 9947668698 is 8968667499.

9947668698 is a `hidden beast` number, since 9 + 9 + 476 + 68 + 6 + 98 = 666.

It is an interprime number because it is at equal distance from previous prime (9947668697) and next prime (9947668699).

It is a super-2 number, since 2×9947668698² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9947668693) 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, 754690 + ... + 767757.

It is an arithmetic number, because the mean of its divisors is an integer number (506213960).

Almost surely, 2^9947668698 is an apocalyptic number.

9947668698 is an abundant number, since it is smaller than the sum of its proper divisors (14350601382).

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

9947668698 is a wasteful number, since it uses less digits than its factorization.

9947668698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522480 (or 1522463 counting only the distinct ones).

The product of its digits is 282175488, while the sum is 72.

The square root of 9947668698 is about 99738.0002707093. Note that the first 3 decimals coincide. The cubic root of 9947668698 is about 2150.6699695372.

The spelling of 9947668698 in words is "nine billion, nine hundred forty-seven million, six hundred sixty-eight thousand, six hundred ninety-eight".