9911811002 has 8 divisors (see below), whose sum is σ = 15742288116. Its totient is φ = 4664381632.

The previous prime is 9911811001. The next prime is 9911811029. The reversal of 9911811002 is 2001181199.

It can be written as a sum of positive squares in 2 ways, for example, as 9393292561 + 518518441 = 96919^2 + 22771^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 9911811002.

It is not an unprimeable number, because it can be changed into a prime (9911811001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145761893 + ... + 145761960.

Almost surely, 2^9911811002 is an apocalyptic number.

9911811002 is a deficient number, since it is larger than the sum of its proper divisors (5830477114).

9911811002 is a wasteful number, since it uses less digits than its factorization.

9911811002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291523872.

The product of its (nonzero) digits is 1296, while the sum is 32.

The square root of 9911811002 is about 99558.0785371032. The cubic root of 9911811002 is about 2148.0827329663.

The spelling of 9911811002 in words is "nine billion, nine hundred eleven million, eight hundred eleven thousand, two".