12888877639 has 8 divisors (see below), whose sum is σ = 14800625280. Its totient is φ = 11100468600.

The previous prime is 12888877559. The next prime is 12888877667. The reversal of 12888877639 is 93677888821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12888877639 is a prime.

It is a super-2 number, since 2×12888877639² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12888877669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30834427 + ... + 30834844.

It is an arithmetic number, because the mean of its divisors is an integer number (1850078160).

Almost surely, 2^12888877639 is an apocalyptic number.

12888877639 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12888877639 is a deficient number, since it is larger than the sum of its proper divisors (1911747641).

12888877639 is a wasteful number, since it uses less digits than its factorization.

12888877639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61669301.

The product of its digits is 65028096, while the sum is 67.

The spelling of 12888877639 in words is "twelve billion, eight hundred eighty-eight million, eight hundred seventy-seven thousand, six hundred thirty-nine".