13345647984 has 60 divisors (see below), whose sum is σ = 37618035000. Its totient is φ = 4416538752.

The previous prime is 13345647977. The next prime is 13345648003. The reversal of 13345647984 is 48974654331.

13345647984 is a `hidden beast` number, since 1 + 3 + 3 + 4 + 564 + 79 + 8 + 4 = 666.

It is a super-2 number, since 2×13345647984² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13345647984.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 313359 + ... + 353390.

It is an arithmetic number, because the mean of its divisors is an integer number (626967250).

Almost surely, 2^13345647984 is an apocalyptic number.

It is an amenable number.

13345647984 is an abundant number, since it is smaller than the sum of its proper divisors (24272387016).

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

13345647984 is a wasteful number, since it uses less digits than its factorization.

13345647984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666902 (or 666893 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 13345647984 in words is "thirteen billion, three hundred forty-five million, six hundred forty-seven thousand, nine hundred eighty-four".