13134440004 has 120 divisors (see below), whose sum is σ = 37636028640. Its totient is φ = 3555038592.

The previous prime is 13134439979. The next prime is 13134440009. The reversal of 13134440004 is 40004443131.

It is not an unprimeable number, because it can be changed into a prime (13134440009) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 535432 + ... + 559424.

It is an arithmetic number, because the mean of its divisors is an integer number (313633572).

Almost surely, 2^13134440004 is an apocalyptic number.

13134440004 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 13134440004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18818014320).

13134440004 is an abundant number, since it is smaller than the sum of its proper divisors (24501588636).

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

13134440004 is a wasteful number, since it uses less digits than its factorization.

13134440004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24047 (or 24024 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 13134440004 its reverse (40004443131), we get a palindrome (53138883135).

The spelling of 13134440004 in words is "thirteen billion, one hundred thirty-four million, four hundred forty thousand, four".