13810287780 has 144 divisors (see below), whose sum is σ = 44941216320. Its totient is φ = 3555715968.

The previous prime is 13810287749. The next prime is 13810287787. The reversal of 13810287780 is 8778201831.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (13810287787) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 91947 + ... + 189933.

It is an arithmetic number, because the mean of its divisors is an integer number (312091780).

Almost surely, 2^13810287780 is an apocalyptic number.

13810287780 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 13810287780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22470608160).

13810287780 is an abundant number, since it is smaller than the sum of its proper divisors (31130928540).

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

13810287780 is a wasteful number, since it uses less digits than its factorization.

13810287780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98040 (or 98026 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The spelling of 13810287780 in words is "thirteen billion, eight hundred ten million, two hundred eighty-seven thousand, seven hundred eighty".