115447642040 has 32 divisors (see below), whose sum is σ = 260190900000. Its totient is φ = 46101953664.

The previous prime is 115447642033. The next prime is 115447642081. The reversal of 115447642040 is 40246744511.

It is a junction number, because it is equal to n+sod(n) for n = 115447641985 and 115447642003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2385215 + ... + 2433134.

It is an arithmetic number, because the mean of its divisors is an integer number (8130965625).

Almost surely, 2^115447642040 is an apocalyptic number.

115447642040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115447642040 is an abundant number, since it is smaller than the sum of its proper divisors (144743257960).

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

115447642040 is a wasteful number, since it uses less digits than its factorization.

115447642040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4818959 (or 4818955 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 115447642040 in words is "one hundred fifteen billion, four hundred forty-seven million, six hundred forty-two thousand, forty".