131674798564609 has 2 divisors, whose sum is σ = 131674798564610. Its totient is φ = 131674798564608.

The previous prime is 131674798564559. The next prime is 131674798564633. The reversal of 131674798564609 is 906465897476131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85068617260225 + 46606181304384 = 9223265^2 + 6826872^2 .

It is a cyclic number.

It is not a de Polignac number, because 131674798564609 - 2⁹ = 131674798564097 is a prime.

It is not a weakly prime, because it can be changed into another prime (131674798568609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65837399282304 + 65837399282305.

It is an arithmetic number, because the mean of its divisors is an integer number (65837399282305).

Almost surely, 2^{131674798564609} is an apocalyptic number.

It is an amenable number.

131674798564609 is a deficient number, since it is larger than the sum of its proper divisors (1).

131674798564609 is an equidigital number, since it uses as much as digits as its factorization.

131674798564609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1646023680, while the sum is 76.

The spelling of 131674798564609 in words is "one hundred thirty-one trillion, six hundred seventy-four billion, seven hundred ninety-eight million, five hundred sixty-four thousand, six hundred nine".