115431140550 has 48 divisors (see below), whose sum is σ = 312293708352. Its totient is φ = 27983306400.

The previous prime is 115431140521. The next prime is 115431140567. The reversal of 115431140550 is 55041134511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34977484 + ... + 34980783.

It is an arithmetic number, because the mean of its divisors is an integer number (6506118924).

Almost surely, 2^115431140550 is an apocalyptic number.

115431140550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115431140550 is an abundant number, since it is smaller than the sum of its proper divisors (196862567802).

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

115431140550 is a wasteful number, since it uses less digits than its factorization.

115431140550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69958293 (or 69958288 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 115431140550 in words is "one hundred fifteen billion, four hundred thirty-one million, one hundred forty thousand, five hundred fifty".