9949755901 has 2 divisors, whose sum is σ = 9949755902. Its totient is φ = 9949755900.

The previous prime is 9949755857. The next prime is 9949755917. The reversal of 9949755901 is 1095579499.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9148922500 + 800833401 = 95650^2 + 28299^2 .

It is a cyclic number.

It is not a de Polignac number, because 9949755901 - 2¹⁷ = 9949624829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9949755931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4974877950 + 4974877951.

It is an arithmetic number, because the mean of its divisors is an integer number (4974877951).

Almost surely, 2^9949755901 is an apocalyptic number.

It is an amenable number.

9949755901 is a deficient number, since it is larger than the sum of its proper divisors (1).

9949755901 is an equidigital number, since it uses as much as digits as its factorization.

9949755901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4592700, while the sum is 58.

The square root of 9949755901 is about 99748.4631510681. The cubic root of 9949755901 is about 2150.8203756620.

The spelling of 9949755901 in words is "nine billion, nine hundred forty-nine million, seven hundred fifty-five thousand, nine hundred one".