13118869536 has 192 divisors, whose sum is σ = 38190797568. Its totient is φ = 3922034688.

The previous prime is 13118869529. The next prime is 13118869537. The reversal of 13118869536 is 63596881131.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (13118869537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14000460 + ... + 14001396.

It is an arithmetic number, because the mean of its divisors is an integer number (198910404).

Almost surely, 2^13118869536 is an apocalyptic number.

13118869536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13118869536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19095398784).

13118869536 is an abundant number, since it is smaller than the sum of its proper divisors (25071928032).

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

13118869536 is a wasteful number, since it uses less digits than its factorization.

13118869536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363 (or 1355 counting only the distinct ones).

The product of its digits is 933120, while the sum is 51.

The spelling of 13118869536 in words is "thirteen billion, one hundred eighteen million, eight hundred sixty-nine thousand, five hundred thirty-six".