131778040206453 has 48 divisors (see below), whose sum is σ = 190932853407744. Its totient is φ = 80791686132480.

The previous prime is 131778040206443. The next prime is 131778040206467. The reversal of 131778040206453 is 354602040877131.

It is a de Polignac number, because none of the positive numbers 2^k-131778040206453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131778040206396 and 131778040206405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131778040206443) 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 47 ways as a sum of consecutive naturals, for example, 22070808 + ... + 27398478.

It is an arithmetic number, because the mean of its divisors is an integer number (3977767779328).

Almost surely, 2^{131778040206453} is an apocalyptic number.

It is an amenable number.

131778040206453 is a deficient number, since it is larger than the sum of its proper divisors (59154813201291).

131778040206453 is a wasteful number, since it uses less digits than its factorization.

131778040206453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5328362 (or 5328345 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 131778040206453 in words is "one hundred thirty-one trillion, seven hundred seventy-eight billion, forty million, two hundred six thousand, four hundred fifty-three".