131773699632449 has 32 divisors (see below), whose sum is σ = 157341821932800. Its totient is φ = 107970139065600.

The previous prime is 131773699632413. The next prime is 131773699632511. The reversal of 131773699632449 is 944236996377131.

It is a happy number.

It is not a de Polignac number, because 131773699632449 - 2²⁸ = 131773431196993 is a prime.

It is a Smith number, since the sum of its digits (74) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131773699032449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34434899 + ... + 38069799.

It is an arithmetic number, because the mean of its divisors is an integer number (4916931935400).

Almost surely, 2^{131773699632449} is an apocalyptic number.

It is an amenable number.

131773699632449 is a deficient number, since it is larger than the sum of its proper divisors (25568122300351).

131773699632449 is a wasteful number, since it uses less digits than its factorization.

131773699632449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3636713.

The product of its digits is 1111065984, while the sum is 74.

The spelling of 131773699632449 in words is "one hundred thirty-one trillion, seven hundred seventy-three billion, six hundred ninety-nine million, six hundred thirty-two thousand, four hundred forty-nine".