131727644435 has 4 divisors (see below), whose sum is σ = 158073173328. Its totient is φ = 105382115544.

The previous prime is 131727644431. The next prime is 131727644449. The reversal of 131727644435 is 534446727131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131727644435 - 2² = 131727644431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131727644435.

It is not an unprimeable number, because it can be changed into a prime (131727644431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13172764439 + ... + 13172764448.

It is an arithmetic number, because the mean of its divisors is an integer number (39518293332).

Almost surely, 2^131727644435 is an apocalyptic number.

131727644435 is a deficient number, since it is larger than the sum of its proper divisors (26345528893).

131727644435 is an equidigital number, since it uses as much as digits as its factorization.

131727644435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26345528892.

The product of its digits is 1693440, while the sum is 47.

The spelling of 131727644435 in words is "one hundred thirty-one billion, seven hundred twenty-seven million, six hundred forty-four thousand, four hundred thirty-five".