11798999225 has 24 divisors (see below), whose sum is σ = 15933277080. Its totient is φ = 8615185920.

The previous prime is 11798999213. The next prime is 11798999279. The reversal of 11798999225 is 52299989711.

It can be written as a sum of positive squares in 12 ways, for example, as 6055329856 + 5743669369 = 77816^2 + 75787^2 .

It is not a de Polignac number, because 11798999225 - 2⁶ = 11798999161 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175034 + ... + 232883.

It is an arithmetic number, because the mean of its divisors is an integer number (663886545).

Almost surely, 2^11798999225 is an apocalyptic number.

It is an amenable number.

11798999225 is a deficient number, since it is larger than the sum of its proper divisors (4134277855).

11798999225 is a wasteful number, since it uses less digits than its factorization.

11798999225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408029 (or 408024 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 62.

The spelling of 11798999225 in words is "eleven billion, seven hundred ninety-eight million, nine hundred ninety-nine thousand, two hundred twenty-five".