115269443520 has 448 divisors, whose sum is σ = 462086553600. Its totient is φ = 23647703040.

The previous prime is 115269443477. The next prime is 115269443539. The reversal of 115269443520 is 25344962511.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5829811 + ... + 5849549.

It is an arithmetic number, because the mean of its divisors is an integer number (1031443200).

Almost surely, 2^115269443520 is an apocalyptic number.

115269443520 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 115269443520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231043276800).

115269443520 is an abundant number, since it is smaller than the sum of its proper divisors (346817110080).

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

115269443520 is a wasteful number, since it uses less digits than its factorization.

115269443520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19856 (or 19846 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 115269443520 in words is "one hundred fifteen billion, two hundred sixty-nine million, four hundred forty-three thousand, five hundred twenty".