13470921680 has 20 divisors (see below), whose sum is σ = 31319893092. Its totient is φ = 5388368640.

The previous prime is 13470921679. The next prime is 13470921683. The reversal of 13470921680 is 8612907431.

It can be written as a sum of positive squares in 2 ways, for example, as 5004713536 + 8466208144 = 70744^2 + 92012^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×13470921680³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13470921683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84193181 + ... + 84193340.

Almost surely, 2^13470921680 is an apocalyptic number.

13470921680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13470921680 is an abundant number, since it is smaller than the sum of its proper divisors (17848971412).

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

13470921680 is a wasteful number, since it uses less digits than its factorization.

13470921680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168386534 (or 168386528 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 13470921680 in words is "thirteen billion, four hundred seventy million, nine hundred twenty-one thousand, six hundred eighty".