9118506623 has 2 divisors, whose sum is σ = 9118506624. Its totient is φ = 9118506622.

The previous prime is 9118506583. The next prime is 9118506629. The reversal of 9118506623 is 3266058119.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9118506623 - 2⁸ = 9118506367 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9118506629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4559253311 + 4559253312.

It is an arithmetic number, because the mean of its divisors is an integer number (4559253312).

Almost surely, 2^9118506623 is an apocalyptic number.

9118506623 is a deficient number, since it is larger than the sum of its proper divisors (1).

9118506623 is an equidigital number, since it uses as much as digits as its factorization.

9118506623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 9118506623 is about 95490.8719354892. The cubic root of 9118506623 is about 2089.1738088806.

The spelling of 9118506623 in words is "nine billion, one hundred eighteen million, five hundred six thousand, six hundred twenty-three".