13540210321540 has 48 divisors (see below), whose sum is σ = 32498030702592. Its totient is φ = 4642139834496.

The previous prime is 13540210321529. The next prime is 13540210321571. The reversal of 13540210321540 is 4512301204531.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735549 + ... + 5255611.

It is an arithmetic number, because the mean of its divisors is an integer number (677042306304).

Almost surely, 2^{13540210321540} is an apocalyptic number.

13540210321540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13540210321540 is an abundant number, since it is smaller than the sum of its proper divisors (18957820381052).

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

13540210321540 is a wasteful number, since it uses less digits than its factorization.

13540210321540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4541476 (or 4541474 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 13540210321540 in words is "thirteen trillion, five hundred forty billion, two hundred ten million, three hundred twenty-one thousand, five hundred forty".