115449778929408 has 288 divisors, whose sum is σ = 383113718507520. Its totient is φ = 29984578990080.

The previous prime is 115449778929403. The next prime is 115449778929427. The reversal of 115449778929408 is 804929877944511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115449778929403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 819495391 + ... + 819636257.

It is an arithmetic number, because the mean of its divisors is an integer number (1330255967040).

Almost surely, 2^{115449778929408} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115449778929408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191556859253760).

115449778929408 is an abundant number, since it is smaller than the sum of its proper divisors (267663939578112).

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

115449778929408 is a wasteful number, since it uses less digits than its factorization.

115449778929408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154763 (or 154749 counting only the distinct ones).

The product of its (nonzero) digits is 1463132160, while the sum is 78.

The spelling of 115449778929408 in words is "one hundred fifteen trillion, four hundred forty-nine billion, seven hundred seventy-eight million, nine hundred twenty-nine thousand, four hundred eight".