115897510738 has 24 divisors (see below), whose sum is σ = 181853030268. Its totient is φ = 55392767232.

The previous prime is 115897510679. The next prime is 115897510763. The reversal of 115897510738 is 837015798511.

It can be written as a sum of positive squares in 2 ways, for example, as 115574841369 + 322669369 = 339963^2 + 17963^2 .

It is a super-3 number, since 3×115897510738³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1607806 + ... + 1678342.

Almost surely, 2^115897510738 is an apocalyptic number.

115897510738 is a deficient number, since it is larger than the sum of its proper divisors (65955519530).

115897510738 is a wasteful number, since it uses less digits than its factorization.

115897510738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72138 (or 72115 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 55.

The spelling of 115897510738 in words is "one hundred fifteen billion, eight hundred ninety-seven million, five hundred ten thousand, seven hundred thirty-eight".