13861820164 has 6 divisors (see below), whose sum is σ = 24258185294. Its totient is φ = 6930910080.

The previous prime is 13861820053. The next prime is 13861820207. The reversal of 13861820164 is 46102816831.

It can be written as a sum of positive squares in only one way, i.e., 12131260164 + 1730560000 = 110142^2 + 41600^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1732727517 + ... + 1732727524.

Almost surely, 2^13861820164 is an apocalyptic number.

It is an amenable number.

13861820164 is a deficient number, since it is larger than the sum of its proper divisors (10396365130).

13861820164 is a wasteful number, since it uses less digits than its factorization.

13861820164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3465455045 (or 3465455043 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 13861820164 in words is "thirteen billion, eight hundred sixty-one million, eight hundred twenty thousand, one hundred sixty-four".