9718379712 has 42 divisors (see below), whose sum is σ = 27855982388. Its totient is φ = 3239459712.

The previous prime is 9718379687. The next prime is 9718379719. The reversal of 9718379712 is 2179738179.

It is a super-2 number, since 2×9718379712² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9718379719) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8435518 + ... + 8436669.

Almost surely, 2^9718379712 is an apocalyptic number.

It is an amenable number.

9718379712 is an abundant number, since it is smaller than the sum of its proper divisors (18137602676).

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

9718379712 is a wasteful number, since it uses less digits than its factorization.

9718379712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16872205 (or 16872192 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 54.

The square root of 9718379712 is about 98581.8427094970. The cubic root of 9718379712 is about 2134.0173919162.

The spelling of 9718379712 in words is "nine billion, seven hundred eighteen million, three hundred seventy-nine thousand, seven hundred twelve".