13047371136 has 320 divisors, whose sum is σ = 41321016000. Its totient is φ = 4075121664.

The previous prime is 13047371059. The next prime is 13047371147. The reversal of 13047371136 is 63117374031.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13047371136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21077835 + ... + 21078453.

It is an arithmetic number, because the mean of its divisors is an integer number (129128175).

Almost surely, 2^13047371136 is an apocalyptic number.

13047371136 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 13047371136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20660508000).

13047371136 is an abundant number, since it is smaller than the sum of its proper divisors (28273644864).

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

13047371136 is a wasteful number, since it uses less digits than its factorization.

13047371136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The spelling of 13047371136 in words is "thirteen billion, forty-seven million, three hundred seventy-one thousand, one hundred thirty-six".