9956057986 has 8 divisors (see below), whose sum is σ = 17067528000. Its totient is φ = 4266881988.

The previous prime is 9956057977. The next prime is 9956057989. The reversal of 9956057986 is 6897506599.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (9956057989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355573486 + ... + 355573513.

It is an arithmetic number, because the mean of its divisors is an integer number (2133441000).

Almost surely, 2^9956057986 is an apocalyptic number.

9956057986 is a deficient number, since it is larger than the sum of its proper divisors (7111470014).

9956057986 is a wasteful number, since it uses less digits than its factorization.

9956057986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711147008.

The product of its (nonzero) digits is 36741600, while the sum is 64.

The square root of 9956057986 is about 99780.0480356669. The cubic root of 9956057986 is about 2151.2743831831.

The spelling of 9956057986 in words is "nine billion, nine hundred fifty-six million, fifty-seven thousand, nine hundred eighty-six".