13643019870 has 16 divisors (see below), whose sum is σ = 32743247760. Its totient is φ = 3638138624.

The previous prime is 13643019829. The next prime is 13643019931. The reversal of 13643019870 is 7891034631.

It is a super-2 number, since 2×13643019870² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 227383635 + ... + 227383694.

It is an arithmetic number, because the mean of its divisors is an integer number (2046452985).

Almost surely, 2^13643019870 is an apocalyptic number.

13643019870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13643019870 is an abundant number, since it is smaller than the sum of its proper divisors (19100227890).

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

13643019870 is a wasteful number, since it uses less digits than its factorization.

13643019870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454767339.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 13643019870 in words is "thirteen billion, six hundred forty-three million, nineteen thousand, eight hundred seventy".