115398831105280 has 144 divisors (see below), whose sum is σ = 290010511139328. Its totient is φ = 43938210816000.

The previous prime is 115398831105263. The next prime is 115398831105289. The reversal of 115398831105280 is 82501138893511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115398831105289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21417526 + ... + 26258485.

It is an arithmetic number, because the mean of its divisors is an integer number (2013961882912).

Almost surely, 2^{115398831105280} is an apocalyptic number.

115398831105280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115398831105280 is an abundant number, since it is smaller than the sum of its proper divisors (174611680034048).

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

115398831105280 is an equidigital number, since it uses as much as digits as its factorization.

115398831105280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47676124 (or 47676110 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 55.

Adding to 115398831105280 its reverse (82501138893511), we get a palindrome (197899969998791).

The spelling of 115398831105280 in words is "one hundred fifteen trillion, three hundred ninety-eight billion, eight hundred thirty-one million, one hundred five thousand, two hundred eighty".