115777657380 has 192 divisors, whose sum is σ = 413569271808. Its totient is φ = 23498173440.

The previous prime is 115777657357. The next prime is 115777657381. The reversal of 115777657380 is 83756777511.

115777657380 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 115777657380.

It is not an unprimeable number, because it can be changed into a prime (115777657381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 92737 + ... + 490056.

It is an arithmetic number, because the mean of its divisors is an integer number (2154006624).

Almost surely, 2^115777657380 is an apocalyptic number.

115777657380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115777657380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206784635904).

115777657380 is an abundant number, since it is smaller than the sum of its proper divisors (297791614428).

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

115777657380 is a wasteful number, since it uses less digits than its factorization.

115777657380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582866 (or 582864 counting only the distinct ones).

The product of its (nonzero) digits is 8643600, while the sum is 57.

The spelling of 115777657380 in words is "one hundred fifteen billion, seven hundred seventy-seven million, six hundred fifty-seven thousand, three hundred eighty".