131775647674784 has 72 divisors (see below), whose sum is σ = 289912598609508. Its totient is φ = 58748276275200.

The previous prime is 131775647674771. The next prime is 131775647674789. The reversal of 131775647674784 is 487476746577131.

It can be written as a sum of positive squares in 2 ways, for example, as 108702727123600 + 23072920551184 = 10426060^2 + 4803428^2 .

It is not an unprimeable number, because it can be changed into a prime (131775647674789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335308667 + ... + 335701434.

Almost surely, 2^{131775647674784} is an apocalyptic number.

It is an amenable number.

131775647674784 is an abundant number, since it is smaller than the sum of its proper divisors (158136950934724).

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

131775647674784 is a wasteful number, since it uses less digits than its factorization.

131775647674784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671010166 (or 671010139 counting only the distinct ones).

The product of its digits is 4646799360, while the sum is 77.

The spelling of 131775647674784 in words is "one hundred thirty-one trillion, seven hundred seventy-five billion, six hundred forty-seven million, six hundred seventy-four thousand, seven hundred eighty-four".