13472384821 has 12 divisors (see below), whose sum is σ = 15765811488. Its totient is φ = 11478603192.

The previous prime is 13472384773. The next prime is 13472384869. The reversal of 13472384821 is 12848327431.

It is an interprime number because it is at equal distance from previous prime (13472384773) and next prime (13472384869).

It is not a de Polignac number, because 13472384821 - 2⁷ = 13472384693 is a prime.

It is a super-2 number, since 2×13472384821² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13472384881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 815011 + ... + 831376.

It is an arithmetic number, because the mean of its divisors is an integer number (1313817624).

Almost surely, 2^13472384821 is an apocalyptic number.

It is an amenable number.

13472384821 is a deficient number, since it is larger than the sum of its proper divisors (2293426667).

13472384821 is a wasteful number, since it uses less digits than its factorization.

13472384821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646568 (or 1646561 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The spelling of 13472384821 in words is "thirteen billion, four hundred seventy-two million, three hundred eighty-four thousand, eight hundred twenty-one".