7185740491 has 2 divisors, whose sum is σ = 7185740492. Its totient is φ = 7185740490.

The previous prime is 7185740479. The next prime is 7185740519. The reversal of 7185740491 is 1940475817.

It is a happy number.

7185740491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7185740491 - 2¹³ = 7185732299 is a prime.

It is not a weakly prime, because it can be changed into another prime (7185740461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3592870245 + 3592870246.

It is an arithmetic number, because the mean of its divisors is an integer number (3592870246).

Almost surely, 2^7185740491 is an apocalyptic number.

7185740491 is a deficient number, since it is larger than the sum of its proper divisors (1).

7185740491 is an equidigital number, since it uses as much as digits as its factorization.

7185740491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 7185740491 is about 84768.7471359581. The cubic root of 7185740491 is about 1929.7031670533.

The spelling of 7185740491 in words is "seven billion, one hundred eighty-five million, seven hundred forty thousand, four hundred ninety-one".