13784401018 has 16 divisors (see below), whose sum is σ = 20892725280. Its totient is φ = 6820234000.

The previous prime is 13784400997. The next prime is 13784401021. The reversal of 13784401018 is 81010448731.

It is a super-3 number, since 3×13784401018³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372393 + ... + 407731.

It is an arithmetic number, because the mean of its divisors is an integer number (1305795330).

Almost surely, 2^13784401018 is an apocalyptic number.

13784401018 is a deficient number, since it is larger than the sum of its proper divisors (7108324262).

13784401018 is a wasteful number, since it uses less digits than its factorization.

13784401018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37373.

The product of its (nonzero) digits is 21504, while the sum is 37.

Adding to 13784401018 its reverse (81010448731), we get a palindrome (94794849749).

The spelling of 13784401018 in words is "thirteen billion, seven hundred eighty-four million, four hundred one thousand, eighteen".