135720139715480 has 128 divisors (see below), whose sum is σ = 317288505784320. Its totient is φ = 52192510755840.

The previous prime is 135720139715473. The next prime is 135720139715507. The reversal of 135720139715480 is 84517931027531.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 483532859 + ... + 483813461.

It is an arithmetic number, because the mean of its divisors is an integer number (2478816451440).

Almost surely, 2^{135720139715480} is an apocalyptic number.

135720139715480 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 135720139715480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158644252892160).

135720139715480 is an abundant number, since it is smaller than the sum of its proper divisors (181568366068840).

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

135720139715480 is a wasteful number, since it uses less digits than its factorization.

135720139715480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283201 (or 283197 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 135720139715480 in words is "one hundred thirty-five trillion, seven hundred twenty billion, one hundred thirty-nine million, seven hundred fifteen thousand, four hundred eighty".