9874794511 has 2 divisors, whose sum is σ = 9874794512. Its totient is φ = 9874794510.

The previous prime is 9874794509. The next prime is 9874794533. The reversal of 9874794511 is 1154974789.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9874794511 - 2¹ = 9874794509 is a prime.

Together with 9874794509, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9874794581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4937397255 + 4937397256.

It is an arithmetic number, because the mean of its divisors is an integer number (4937397256).

Almost surely, 2^9874794511 is an apocalyptic number.

9874794511 is a deficient number, since it is larger than the sum of its proper divisors (1).

9874794511 is an equidigital number, since it uses as much as digits as its factorization.

9874794511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 55.

The square root of 9874794511 is about 99372.0006390130. Note that the first 3 decimals coincide. The cubic root of 9874794511 is about 2145.4053320511.

The spelling of 9874794511 in words is "nine billion, eight hundred seventy-four million, seven hundred ninety-four thousand, five hundred eleven".