99918919010 has 8 divisors (see below), whose sum is σ = 179854054236. Its totient is φ = 39967567600.

The previous prime is 99918919003. The next prime is 99918919033. The reversal of 99918919010 is 1091981999.

It can be written as a sum of positive squares in 2 ways, for example, as 92501747881 + 7417171129 = 304141^2 + 86123^2 .

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

It is a super-2 number, since 2×99918919010² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4995945941 + ... + 4995945960.

Almost surely, 2^99918919010 is an apocalyptic number.

99918919010 is a deficient number, since it is larger than the sum of its proper divisors (79935135226).

99918919010 is a wasteful number, since it uses less digits than its factorization.

99918919010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9991891908.

The product of its (nonzero) digits is 472392, while the sum is 56.

The spelling of 99918919010 in words is "ninety-nine billion, nine hundred eighteen million, nine hundred nineteen thousand, ten".