56400071239 has 2 divisors, whose sum is σ = 56400071240. Its totient is φ = 56400071238.

The previous prime is 56400071197. The next prime is 56400071243. The reversal of 56400071239 is 93217000465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56400071239 - 2³¹ = 54252587591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56400071198 and 56400071207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56400071279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28200035619 + 28200035620.

It is an arithmetic number, because the mean of its divisors is an integer number (28200035620).

Almost surely, 2^56400071239 is an apocalyptic number.

56400071239 is a deficient number, since it is larger than the sum of its proper divisors (1).

56400071239 is an equidigital number, since it uses as much as digits as its factorization.

56400071239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 56400071239 in words is "fifty-six billion, four hundred million, seventy-one thousand, two hundred thirty-nine".