115717520740 has 24 divisors (see below), whose sum is σ = 243112133880. Its totient is φ = 46266943488.

The previous prime is 115717520717. The next prime is 115717520791. The reversal of 115717520740 is 47025717511.

It can be written as a sum of positive squares in 4 ways, for example, as 4337803044 + 111379717696 = 65862^2 + 333736^2 .

It is a junction number, because it is equal to n+sod(n) for n = 115717520693 and 115717520702.

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, 1206717 + ... + 1299076.

It is an arithmetic number, because the mean of its divisors is an integer number (10129672245).

Almost surely, 2^115717520740 is an apocalyptic number.

115717520740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115717520740 is an abundant number, since it is smaller than the sum of its proper divisors (127394613140).

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

115717520740 is a wasteful number, since it uses less digits than its factorization.

115717520740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508111 (or 2508109 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 40.

The spelling of 115717520740 in words is "one hundred fifteen billion, seven hundred seventeen million, five hundred twenty thousand, seven hundred forty".