13343763420 has 720 divisors, whose sum is σ = 49818561408. Its totient is φ = 2976030720.

The previous prime is 13343763353. The next prime is 13343763427. The reversal of 13343763420 is 2436734331.

13343763420 is a `hidden beast` number, since 13 + 3 + 4 + 3 + 7 + 634 + 2 + 0 = 666.

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 (13343763427) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 218750190 + ... + 218750250.

Almost surely, 2^13343763420 is an apocalyptic number.

13343763420 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 13343763420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24909280704).

13343763420 is an abundant number, since it is smaller than the sum of its proper divisors (36474797988).

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

13343763420 is a wasteful number, since it uses less digits than its factorization.

13343763420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 36.

The spelling of 13343763420 in words is "thirteen billion, three hundred forty-three million, seven hundred sixty-three thousand, four hundred twenty".