331256678047 has 2 divisors, whose sum is σ = 331256678048. Its totient is φ = 331256678046.

The previous prime is 331256678029. The next prime is 331256678147. The reversal of 331256678047 is 740876652133.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 331256678047 - 2¹⁹ = 331256153759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331256677985 and 331256678003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331256678147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165628339023 + 165628339024.

It is an arithmetic number, because the mean of its divisors is an integer number (165628339024).

Almost surely, 2^331256678047 is an apocalyptic number.

331256678047 is a deficient number, since it is larger than the sum of its proper divisors (1).

331256678047 is an equidigital number, since it uses as much as digits as its factorization.

331256678047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 331256678047 in words is "three hundred thirty-one billion, two hundred fifty-six million, six hundred seventy-eight thousand, forty-seven".