11898897949 has 2 divisors, whose sum is σ = 11898897950. Its totient is φ = 11898897948.

The previous prime is 11898897929. The next prime is 11898898003. The reversal of 11898897949 is 94979889811.

11898897949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11822212900 + 76685049 = 108730^2 + 8757^2 .

It is a cyclic number.

It is not a de Polignac number, because 11898897949 - 2¹³ = 11898889757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11898897929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5949448974 + 5949448975.

It is an arithmetic number, because the mean of its divisors is an integer number (5949448975).

Almost surely, 2^11898897949 is an apocalyptic number.

It is an amenable number.

11898897949 is a deficient number, since it is larger than the sum of its proper divisors (1).

11898897949 is an equidigital number, since it uses as much as digits as its factorization.

11898897949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94058496, while the sum is 73.

The spelling of 11898897949 in words is "eleven billion, eight hundred ninety-eight million, eight hundred ninety-seven thousand, nine hundred forty-nine".