115304887620 has 144 divisors (see below), whose sum is σ = 377255157552. Its totient is φ = 28338094080.

The previous prime is 115304887561. The next prime is 115304887637. The reversal of 115304887620 is 26788403511.

115304887620 is a `hidden beast` number, since 1 + 1 + 530 + 48 + 8 + 76 + 2 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 11217351744 + 104087535876 = 105912^2 + 322626^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1461504 + ... + 1538376.

It is an arithmetic number, because the mean of its divisors is an integer number (2619827483).

Almost surely, 2^115304887620 is an apocalyptic number.

115304887620 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 115304887620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188627578776).

115304887620 is an abundant number, since it is smaller than the sum of its proper divisors (261950269932).

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

115304887620 is a wasteful number, since it uses less digits than its factorization.

115304887620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77542 (or 77537 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 115304887620 in words is "one hundred fifteen billion, three hundred four million, eight hundred eighty-seven thousand, six hundred twenty".