9958890818 has 8 divisors (see below), whose sum is σ = 15256173312. Its totient is φ = 4873499716.

The previous prime is 9958890817. The next prime is 9958890889. The reversal of 9958890818 is 8180988599.

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 (9958890817) 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, 52972730 + ... + 52972917.

It is an arithmetic number, because the mean of its divisors is an integer number (1907021664).

Almost surely, 2^9958890818 is an apocalyptic number.

9958890818 is a deficient number, since it is larger than the sum of its proper divisors (5297282494).

9958890818 is a wasteful number, since it uses less digits than its factorization.

9958890818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105945696.

The product of its (nonzero) digits is 14929920, while the sum is 65.

The square root of 9958890818 is about 99794.2424090689. The cubic root of 9958890818 is about 2151.4784003759.

The spelling of 9958890818 in words is "nine billion, nine hundred fifty-eight million, eight hundred ninety thousand, eight hundred eighteen".