115131287554380 has 144 divisors (see below), whose sum is σ = 351453630528000. Its totient is φ = 30506801109120.

The previous prime is 115131287554117. The next prime is 115131287554399. The reversal of 115131287554380 is 83455782131511.

115131287554380 is a `hidden beast` number, since 1 + 1 + 5 + 1 + 3 + 1 + 2 + 8 + 7 + 554 + 3 + 80 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21061021 + ... + 25958219.

It is an arithmetic number, because the mean of its divisors is an integer number (2440650212000).

Almost surely, 2^{115131287554380} is an apocalyptic number.

115131287554380 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 115131287554380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175726815264000).

115131287554380 is an abundant number, since it is smaller than the sum of its proper divisors (236322342973620).

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

115131287554380 is a wasteful number, since it uses less digits than its factorization.

115131287554380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4898044 (or 4898039 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 54.

The spelling of 115131287554380 in words is "one hundred fifteen trillion, one hundred thirty-one billion, two hundred eighty-seven million, five hundred fifty-four thousand, three hundred eighty".