115954129544 has 64 divisors (see below), whose sum is σ = 239631575040. Its totient is φ = 52162032960.

The previous prime is 115954129531. The next prime is 115954129549. The reversal of 115954129544 is 445921459511.

It is a junction number, because it is equal to n+sod(n) for n = 115954129492 and 115954129501.

It is not an unprimeable number, because it can be changed into a prime (115954129549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19965089 + ... + 19970895.

It is an arithmetic number, because the mean of its divisors is an integer number (3744243360).

Almost surely, 2^115954129544 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 115954129544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119815787520).

115954129544 is an abundant number, since it is smaller than the sum of its proper divisors (123677445496).

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

115954129544 is a wasteful number, since it uses less digits than its factorization.

115954129544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8130 (or 8126 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 50.

The spelling of 115954129544 in words is "one hundred fifteen billion, nine hundred fifty-four million, one hundred twenty-nine thousand, five hundred forty-four".