13387488678 has 256 divisors, whose sum is σ = 33666969600. Its totient is φ = 3973971456.

The previous prime is 13387488671. The next prime is 13387488713. The reversal of 13387488678 is 87688478331.

13387488678 is a `hidden beast` number, since 1 + 3 + 3 + 87 + 488 + 6 + 78 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13387488671) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 169461843 + ... + 169461921.

It is an arithmetic number, because the mean of its divisors is an integer number (131511600).

Almost surely, 2^13387488678 is an apocalyptic number.

13387488678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13387488678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16833484800).

13387488678 is an abundant number, since it is smaller than the sum of its proper divisors (20279480922).

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

13387488678 is an equidigital number, since it uses as much as digits as its factorization.

13387488678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 197 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 63.

The spelling of 13387488678 in words is "thirteen billion, three hundred eighty-seven million, four hundred eighty-eight thousand, six hundred seventy-eight".