135897397248 has 576 divisors, whose sum is σ = 425890483200. Its totient is φ = 38255984640.

The previous prime is 135897397243. The next prime is 135897397249. The reversal of 135897397248 is 842793798531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135897397243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2891433961 + ... + 2891434007.

It is an arithmetic number, because the mean of its divisors is an integer number (739393200).

Almost surely, 2^135897397248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135897397248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212945241600).

135897397248 is an abundant number, since it is smaller than the sum of its proper divisors (289993085952).

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

135897397248 is a wasteful number, since it uses less digits than its factorization.

135897397248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 119 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 66.

The spelling of 135897397248 in words is "one hundred thirty-five billion, eight hundred ninety-seven million, three hundred ninety-seven thousand, two hundred forty-eight".