131778773077623 has 8 divisors (see below), whose sum is σ = 200805749451648. Its totient is φ = 75302156044344.

The previous prime is 131778773077621. The next prime is 131778773077661. The reversal of 131778773077623 is 326770377877131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131778773077623 - 2¹ = 131778773077621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131778773077621) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3137589835161 + ... + 3137589835202.

It is an arithmetic number, because the mean of its divisors is an integer number (25100718681456).

Almost surely, 2^{131778773077623} is an apocalyptic number.

131778773077623 is a deficient number, since it is larger than the sum of its proper divisors (69026976374025).

131778773077623 is an equidigital number, since it uses as much as digits as its factorization.

131778773077623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6275179670373.

The product of its (nonzero) digits is 304946208, while the sum is 69.

The spelling of 131778773077623 in words is "one hundred thirty-one trillion, seven hundred seventy-eight billion, seven hundred seventy-three million, seventy-seven thousand, six hundred twenty-three".