13780373832 has 160 divisors (see below), whose sum is σ = 40012255800. Its totient is φ = 4427467776.

The previous prime is 13780373759. The next prime is 13780373833. The reversal of 13780373832 is 23837308731.

It can be written as a sum of positive squares in 4 ways, for example, as 13718499876 + 61873956 = 117126^2 + 7866^2 .

It is not an unprimeable number, because it can be changed into a prime (13780373833) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2610748 + ... + 2616020.

Almost surely, 2^13780373832 is an apocalyptic number.

13780373832 is a gapful number since it is divisible by the number (12) 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 13780373832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20006127900).

13780373832 is an abundant number, since it is smaller than the sum of its proper divisors (26231881968).

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

13780373832 is a wasteful number, since it uses less digits than its factorization.

13780373832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5437 (or 5424 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 13780373832 in words is "thirteen billion, seven hundred eighty million, three hundred seventy-three thousand, eight hundred thirty-two".