9240478691 has 2 divisors, whose sum is σ = 9240478692. Its totient is φ = 9240478690.

The previous prime is 9240478669. The next prime is 9240478693. The reversal of 9240478691 is 1968740429.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9240478691 - 2³⁰ = 8166736867 is a prime.

Together with 9240478693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9240478693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4620239345 + 4620239346.

It is an arithmetic number, because the mean of its divisors is an integer number (4620239346).

Almost surely, 2^9240478691 is an apocalyptic number.

9240478691 is a deficient number, since it is larger than the sum of its proper divisors (1).

9240478691 is an equidigital number, since it uses as much as digits as its factorization.

9240478691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 9240478691 is about 96127.4086356228. The cubic root of 9240478691 is about 2098.4477335370.

The spelling of 9240478691 in words is "nine billion, two hundred forty million, four hundred seventy-eight thousand, six hundred ninety-one".