9042694249 has 2 divisors, whose sum is σ = 9042694250. Its totient is φ = 9042694248.

The previous prime is 9042694223. The next prime is 9042694267. The reversal of 9042694249 is 9424962409.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8848788624 + 193905625 = 94068^2 + 13925^2 .

It is an emirp because it is prime and its reverse (9424962409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9042694249 - 2¹¹ = 9042692201 is a prime.

It is not a weakly prime, because it can be changed into another prime (9042694049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4521347124 + 4521347125.

It is an arithmetic number, because the mean of its divisors is an integer number (4521347125).

Almost surely, 2^9042694249 is an apocalyptic number.

It is an amenable number.

9042694249 is a deficient number, since it is larger than the sum of its proper divisors (1).

9042694249 is an equidigital number, since it uses as much as digits as its factorization.

9042694249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The square root of 9042694249 is about 95093.0820249297. The cubic root of 9042694249 is about 2083.3678066416.

The spelling of 9042694249 in words is "nine billion, forty-two million, six hundred ninety-four thousand, two hundred forty-nine".