11426138520 has 32 divisors (see below), whose sum is σ = 34278415920. Its totient is φ = 3046970240.

The previous prime is 11426138519. The next prime is 11426138539. The reversal of 11426138520 is 2583162411.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 47608791 + ... + 47609030.

Almost surely, 2^11426138520 is an apocalyptic number.

11426138520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11426138520 is an abundant number, since it is smaller than the sum of its proper divisors (22852277400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11426138520 is a wasteful number, since it uses less digits than its factorization.

11426138520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95217835 (or 95217831 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 11426138520 in words is "eleven billion, four hundred twenty-six million, one hundred thirty-eight thousand, five hundred twenty".