9120556799 has 2 divisors, whose sum is σ = 9120556800. Its totient is φ = 9120556798.

The previous prime is 9120556793. The next prime is 9120556807. The reversal of 9120556799 is 9976550219.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9120556799 - 2¹² = 9120552703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9120556799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9120556793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4560278399 + 4560278400.

It is an arithmetic number, because the mean of its divisors is an integer number (4560278400).

Almost surely, 2^9120556799 is an apocalyptic number.

9120556799 is a deficient number, since it is larger than the sum of its proper divisors (1).

9120556799 is an equidigital number, since it uses as much as digits as its factorization.

9120556799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1530900, while the sum is 53.

The square root of 9120556799 is about 95501.6062639786. The cubic root of 9120556799 is about 2089.3303715435.

The spelling of 9120556799 in words is "nine billion, one hundred twenty million, five hundred fifty-six thousand, seven hundred ninety-nine".