13540625280 has 1024 divisors, whose sum is σ = 60318720000. Its totient is φ = 2794881024.

The previous prime is 13540625269. The next prime is 13540625333. The reversal of 13540625280 is 8252604531.

13540625280 is a `hidden beast` number, since 1 + 3 + 5 + 4 + 0 + 625 + 28 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 124225866 + ... + 124225974.

It is an arithmetic number, because the mean of its divisors is an integer number (58905000).

Almost surely, 2^13540625280 is an apocalyptic number.

13540625280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13540625280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30159360000).

13540625280 is an abundant number, since it is smaller than the sum of its proper divisors (46778094720).

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

13540625280 is a wasteful number, since it uses less digits than its factorization.

13540625280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 13540625280 in words is "thirteen billion, five hundred forty million, six hundred twenty-five thousand, two hundred eighty".