115894784880 has 640 divisors, whose sum is σ = 481754880000. Its totient is φ = 25016573952.

The previous prime is 115894784849. The next prime is 115894784959. The reversal of 115894784880 is 88487498511.

115894784880 is a `hidden beast` number, since 1 + 1 + 5 + 89 + 4 + 78 + 488 + 0 = 666.

It is a super-2 number, since 2×115894784880² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 163461966 + ... + 163462674.

It is an arithmetic number, because the mean of its divisors is an integer number (752742000).

Almost surely, 2^115894784880 is an apocalyptic number.

115894784880 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 115894784880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240877440000).

115894784880 is an abundant number, since it is smaller than the sum of its proper divisors (365860095120).

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

115894784880 is a wasteful number, since it uses less digits than its factorization.

115894784880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 63.

The spelling of 115894784880 in words is "one hundred fifteen billion, eight hundred ninety-four million, seven hundred eighty-four thousand, eight hundred eighty".