9999974111 has 2 divisors, whose sum is σ = 9999974112. Its totient is φ = 9999974110.

The previous prime is 9999974099. The next prime is 9999974123. The reversal of 9999974111 is 1114799999.

It is a balanced prime because it is at equal distance from previous prime (9999974099) and next prime (9999974123).

It is an emirp because it is prime and its reverse (1114799999) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9999974111 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9999974161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999987055 + 4999987056.

It is an arithmetic number, because the mean of its divisors is an integer number (4999987056).

Almost surely, 2^9999974111 is an apocalyptic number.

9999974111 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999974111 is an equidigital number, since it uses as much as digits as its factorization.

9999974111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1653372, while the sum is 59.

The square root of 9999974111 is about 99999.8705549162. The cubic root of 9999974111 is about 2154.4328308250.

The spelling of 9999974111 in words is "nine billion, nine hundred ninety-nine million, nine hundred seventy-four thousand, one hundred eleven".