115491637144 has 32 divisors (see below), whose sum is σ = 243343588320. Its totient is φ = 50986273536.

The previous prime is 115491637141. The next prime is 115491637171. The reversal of 115491637144 is 441736194511.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 115491637094 and 115491637103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115491637141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24138837 + ... + 24143620.

It is an arithmetic number, because the mean of its divisors is an integer number (7604487135).

Almost surely, 2^115491637144 is an apocalyptic number.

It is an amenable number.

115491637144 is an abundant number, since it is smaller than the sum of its proper divisors (127851951176).

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

115491637144 is a wasteful number, since it uses less digits than its factorization.

115491637144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48282499 (or 48282495 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The spelling of 115491637144 in words is "one hundred fifteen billion, four hundred ninety-one million, six hundred thirty-seven thousand, one hundred forty-four".