13784340784 has 20 divisors (see below), whose sum is σ = 27628097760. Its totient is φ = 6654509120.

The previous prime is 13784340769. The next prime is 13784340797. The reversal of 13784340784 is 48704348731.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14853352 + ... + 14854279.

It is an arithmetic number, because the mean of its divisors is an integer number (1381404888).

Almost surely, 2^13784340784 is an apocalyptic number.

It is an amenable number.

13784340784 is an abundant number, since it is smaller than the sum of its proper divisors (13843756976).

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

13784340784 is a wasteful number, since it uses less digits than its factorization.

13784340784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29707668 (or 29707662 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 49.

The spelling of 13784340784 in words is "thirteen billion, seven hundred eighty-four million, three hundred forty thousand, seven hundred eighty-four".