12988264538 has 8 divisors (see below), whose sum is σ = 19896916032. Its totient is φ = 6355959196.

The previous prime is 12988264501. The next prime is 12988264559. The reversal of 12988264538 is 83546288921.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 69086420 + ... + 69086607.

It is an arithmetic number, because the mean of its divisors is an integer number (2487114504).

Almost surely, 2^12988264538 is an apocalyptic number.

12988264538 is a deficient number, since it is larger than the sum of its proper divisors (6908651494).

12988264538 is a wasteful number, since it uses less digits than its factorization.

12988264538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138173076.

The product of its digits is 6635520, while the sum is 56.

The spelling of 12988264538 in words is "twelve billion, nine hundred eighty-eight million, two hundred sixty-four thousand, five hundred thirty-eight".