9968013988 has 48 divisors (see below), whose sum is σ = 18892790784. Its totient is φ = 4583808000.

The previous prime is 9968013983. The next prime is 9968013989. The reversal of 9968013988 is 8893108699.

It is a super-2 number, since 2×9968013988² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9968013983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2398120 + ... + 2402272.

It is an arithmetic number, because the mean of its divisors is an integer number (393599808).

Almost surely, 2^9968013988 is an apocalyptic number.

It is an amenable number.

9968013988 is a deficient number, since it is larger than the sum of its proper divisors (8924776796).

9968013988 is a wasteful number, since it uses less digits than its factorization.

9968013988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4972 (or 4970 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 61.

The square root of 9968013988 is about 99839.9418469382. The cubic root of 9968013988 is about 2152.1351774168.

The spelling of 9968013988 in words is "nine billion, nine hundred sixty-eight million, thirteen thousand, nine hundred eighty-eight".