9811002993 has 16 divisors (see below), whose sum is σ = 14280646656. Its totient is φ = 5941855440.

The previous prime is 9811002989. The next prime is 9811003003. The reversal of 9811002993 is 3992001189.

It is not a de Polignac number, because 9811002993 - 2² = 9811002989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9811002913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57505 + ... + 151422.

It is an arithmetic number, because the mean of its divisors is an integer number (892540416).

Almost surely, 2^9811002993 is an apocalyptic number.

It is an amenable number.

9811002993 is a deficient number, since it is larger than the sum of its proper divisors (4469643663).

9811002993 is a wasteful number, since it uses less digits than its factorization.

9811002993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210364.

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 9811002993 is about 99050.5072829009. The cubic root of 9811002993 is about 2140.7755503423.

The spelling of 9811002993 in words is "nine billion, eight hundred eleven million, two thousand, nine hundred ninety-three".