13074287820 has 192 divisors, whose sum is σ = 41726361600. Its totient is φ = 3029932800.

The previous prime is 13074287803. The next prime is 13074287857. The reversal of 13074287820 is 2878247031.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1694331 + ... + 1702029.

It is an arithmetic number, because the mean of its divisors is an integer number (217324800).

Almost surely, 2^13074287820 is an apocalyptic number.

13074287820 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 13074287820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20863180800).

13074287820 is an abundant number, since it is smaller than the sum of its proper divisors (28652073780).

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

13074287820 is a wasteful number, since it uses less digits than its factorization.

13074287820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7836 (or 7834 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The spelling of 13074287820 in words is "thirteen billion, seventy-four million, two hundred eighty-seven thousand, eight hundred twenty".