131860028544 has 128 divisors (see below), whose sum is σ = 362627625600. Its totient is φ = 42402963456.

The previous prime is 131860028543. The next prime is 131860028567. The reversal of 131860028544 is 445820068131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 131860028496 and 131860028505.

It is not an unprimeable number, because it can be changed into a prime (131860028543) 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, 15953757 + ... + 15962019.

It is an arithmetic number, because the mean of its divisors is an integer number (2833028325).

Almost surely, 2^131860028544 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 131860028544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181313812800).

131860028544 is an abundant number, since it is smaller than the sum of its proper divisors (230767597056).

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

131860028544 is a wasteful number, since it uses less digits than its factorization.

131860028544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9742 (or 9730 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 131860028544 in words is "one hundred thirty-one billion, eight hundred sixty million, twenty-eight thousand, five hundred forty-four".