115271981748 has 72 divisors (see below), whose sum is σ = 363281405760. Its totient is φ = 29940773760.

The previous prime is 115271981743. The next prime is 115271981789. The reversal of 115271981748 is 847189172511.

It is a happy number.

115271981748 is a `hidden beast` number, since 11 + 527 + 1 + 98 + 17 + 4 + 8 = 666.

It is a super-2 number, since 2×115271981748² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 115271981694 and 115271981703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115271981743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20789433 + ... + 20794976.

It is an arithmetic number, because the mean of its divisors is an integer number (5045575080).

Almost surely, 2^115271981748 is an apocalyptic number.

115271981748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

115271981748 is an abundant number, since it is smaller than the sum of its proper divisors (248009424012).

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

115271981748 is a wasteful number, since it uses less digits than its factorization.

115271981748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41584437 (or 41584432 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 54.

The spelling of 115271981748 in words is "one hundred fifteen billion, two hundred seventy-one million, nine hundred eighty-one thousand, seven hundred forty-eight".