13855320004261 has 4 divisors (see below), whose sum is σ = 13855333009024. Its totient is φ = 13855306999500.

The previous prime is 13855320004241. The next prime is 13855320004297. The reversal of 13855320004261 is 16240002355831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13855320004261 - 2¹⁷ = 13855319873189 is a prime.

It is a super-2 number, since 2×13855320004261² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13855320004241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4746165 + ... + 7087786.

It is an arithmetic number, because the mean of its divisors is an integer number (3463833252256).

Almost surely, 2^{13855320004261} is an apocalyptic number.

It is an amenable number.

13855320004261 is a deficient number, since it is larger than the sum of its proper divisors (13004763).

13855320004261 is a wasteful number, since it uses less digits than its factorization.

13855320004261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13004762.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 13855320004261 in words is "thirteen trillion, eight hundred fifty-five billion, three hundred twenty million, four thousand, two hundred sixty-one".