131775913648 has 10 divisors (see below), whose sum is σ = 255315832724. Its totient is φ = 65887956816.

The previous prime is 131775913639. The next prime is 131775913651. The reversal of 131775913648 is 846319577131.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4117997286 + ... + 4117997317.

Almost surely, 2^131775913648 is an apocalyptic number.

It is an amenable number.

131775913648 is a deficient number, since it is larger than the sum of its proper divisors (123539919076).

131775913648 is an equidigital number, since it uses as much as digits as its factorization.

131775913648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8235994611 (or 8235994605 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 55.

The spelling of 131775913648 in words is "one hundred thirty-one billion, seven hundred seventy-five million, nine hundred thirteen thousand, six hundred forty-eight".