13018937800 has 96 divisors (see below), whose sum is σ = 33392282400. Its totient is φ = 4680896000.

The previous prime is 13018937783. The next prime is 13018937803. The reversal of 13018937800 is 873981031.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (13018937803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162555 + ... + 229045.

It is an arithmetic number, because the mean of its divisors is an integer number (347836275).

Almost surely, 2^13018937800 is an apocalyptic number.

13018937800 is a gapful number since it is divisible by the number (10) 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 13018937800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16696141200).

13018937800 is an abundant number, since it is smaller than the sum of its proper divisors (20373344600).

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

13018937800 is a wasteful number, since it uses less digits than its factorization.

13018937800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66607 (or 66598 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 13018937800 in words is "thirteen billion, eighteen million, nine hundred thirty-seven thousand, eight hundred".