13138668000 has 576 divisors, whose sum is σ = 49175852544. Its totient is φ = 3317760000.

The previous prime is 13138667981. The next prime is 13138668001. The reversal of 13138668000 is 86683131.

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 (13138668001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 68075904 + ... + 68076096.

It is an arithmetic number, because the mean of its divisors is an integer number (85374744).

Almost surely, 2^13138668000 is an apocalyptic number.

13138668000 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 13138668000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24587926272).

13138668000 is an abundant number, since it is smaller than the sum of its proper divisors (36037184544).

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

13138668000 is a wasteful number, since it uses less digits than its factorization.

13138668000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 13138668000 in words is "thirteen billion, one hundred thirty-eight million, six hundred sixty-eight thousand".