13405064280 has 32 divisors (see below), whose sum is σ = 40215193200. Its totient is φ = 3574683776.

The previous prime is 13405064279. The next prime is 13405064291. The reversal of 13405064280 is 8246050431.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55854315 + ... + 55854554.

Almost surely, 2^13405064280 is an apocalyptic number.

13405064280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13405064280 is an abundant number, since it is smaller than the sum of its proper divisors (26810128920).

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

13405064280 is a wasteful number, since it uses less digits than its factorization.

13405064280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111708883 (or 111708879 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 13405064280 in words is "thirteen billion, four hundred five million, sixty-four thousand, two hundred eighty".