9128948407 has 2 divisors, whose sum is σ = 9128948408. Its totient is φ = 9128948406.

The previous prime is 9128948383. The next prime is 9128948419. The reversal of 9128948407 is 7048498219.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9128948407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9128948447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4564474203 + 4564474204.

It is an arithmetic number, because the mean of its divisors is an integer number (4564474204).

Almost surely, 2^9128948407 is an apocalyptic number.

9128948407 is a deficient number, since it is larger than the sum of its proper divisors (1).

9128948407 is an equidigital number, since it uses as much as digits as its factorization.

9128948407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 9128948407 is about 95545.5305443431. The cubic root of 9128948407 is about 2089.9709562289.

The spelling of 9128948407 in words is "nine billion, one hundred twenty-eight million, nine hundred forty-eight thousand, four hundred seven".