11520426998 has 16 divisors (see below), whose sum is σ = 17405312400. Its totient is φ = 5718695136.

The previous prime is 11520426989. The next prime is 11520427063. The reversal of 11520426998 is 89962402511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667040 + ... + 684092.

It is an arithmetic number, because the mean of its divisors is an integer number (1087832025).

Almost surely, 2^11520426998 is an apocalyptic number.

11520426998 is a deficient number, since it is larger than the sum of its proper divisors (5884885402).

11520426998 is a wasteful number, since it uses less digits than its factorization.

11520426998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19471.

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 11520426998 in words is "eleven billion, five hundred twenty million, four hundred twenty-six thousand, nine hundred ninety-eight".