115971867389840 has 480 divisors, whose sum is σ = 348304019949312. Its totient is φ = 35126145331200.

The previous prime is 115971867389773. The next prime is 115971867389993. The reversal of 115971867389840 is 48983768179511.

It is a Harshad number since it is a multiple of its sum of digits (77).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2033245802 + ... + 2033302838.

Almost surely, 2^{115971867389840} is an apocalyptic number.

115971867389840 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 115971867389840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174152009974656).

115971867389840 is an abundant number, since it is smaller than the sum of its proper divisors (232332152559472).

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

115971867389840 is a wasteful number, since it uses less digits than its factorization.

115971867389840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57927 (or 57910 counting only the distinct ones).

The product of its (nonzero) digits is 731566080, while the sum is 77.

The spelling of 115971867389840 in words is "one hundred fifteen trillion, nine hundred seventy-one billion, eight hundred sixty-seven million, three hundred eighty-nine thousand, eight hundred forty".