131778714363 has 4 divisors (see below), whose sum is σ = 175704952488. Its totient is φ = 87852476240.

The previous prime is 131778714341. The next prime is 131778714367. The reversal of 131778714363 is 363417877131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 363417877131 = 3 ⋅121139292377.

It is a cyclic number.

It is not a de Polignac number, because 131778714363 - 2¹⁴ = 131778697979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131778714367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21963119058 + ... + 21963119063.

It is an arithmetic number, because the mean of its divisors is an integer number (43926238122).

Almost surely, 2^131778714363 is an apocalyptic number.

131778714363 is a deficient number, since it is larger than the sum of its proper divisors (43926238125).

131778714363 is an equidigital number, since it uses as much as digits as its factorization.

131778714363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43926238124.

The product of its digits is 1778112, while the sum is 51.

The spelling of 131778714363 in words is "one hundred thirty-one billion, seven hundred seventy-eight million, seven hundred fourteen thousand, three hundred sixty-three".