13129500384 has 1536 divisors, whose sum is σ = 58525286400. Its totient is φ = 2747105280.

The previous prime is 13129500383. The next prime is 13129500451. The reversal of 13129500384 is 48300592131.

It is a super-2 number, since 2×13129500384² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13129500383) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 279351049 + ... + 279351095.

It is an arithmetic number, because the mean of its divisors is an integer number (38102400).

Almost surely, 2^13129500384 is an apocalyptic number.

13129500384 is a gapful number since it is divisible by the number (14) 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 13129500384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29262643200).

13129500384 is an abundant number, since it is smaller than the sum of its proper divisors (45395786016).

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

13129500384 is a wasteful number, since it uses less digits than its factorization.

13129500384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 13129500384 in words is "thirteen billion, one hundred twenty-nine million, five hundred thousand, three hundred eighty-four".