131910691916644 has 9 divisors (see below), whose sum is σ = 230843751052467. Its totient is φ = 65955334473084.

The previous prime is 131910691916593. The next prime is 131910691916677. The reversal of 131910691916644 is 446619196019131.

It is a happy number.

The square root of 131910691916644 is 11485238.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 20099167 + ... + 25841785.

Almost surely, 2^{131910691916644} is an apocalyptic number.

131910691916644 is the 11485238-th square number.

It is an amenable number.

131910691916644 is a deficient number, since it is larger than the sum of its proper divisors (98933059135823).

131910691916644 is an frugal number, since it uses more digits than its factorization.

131910691916644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11485242 (or 5742621 counting only the distinct ones).

The product of its (nonzero) digits is 7558272, while the sum is 61.

The spelling of 131910691916644 in words is "one hundred thirty-one trillion, nine hundred ten billion, six hundred ninety-one million, nine hundred sixteen thousand, six hundred forty-four".