56617422869971 has 2 divisors, whose sum is σ = 56617422869972. Its totient is φ = 56617422869970.

The previous prime is 56617422869947. The next prime is 56617422869977. The reversal of 56617422869971 is 17996822471665.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56617422869971 - 2⁹ = 56617422869459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56617422869894 and 56617422869903.

It is not a weakly prime, because it can be changed into another prime (56617422869977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28308711434985 + 28308711434986.

It is an arithmetic number, because the mean of its divisors is an integer number (28308711434986).

Almost surely, 2^{56617422869971} is an apocalyptic number.

56617422869971 is a deficient number, since it is larger than the sum of its proper divisors (1).

56617422869971 is an equidigital number, since it uses as much as digits as its factorization.

56617422869971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 548674560, while the sum is 73.

The spelling of 56617422869971 in words is "fifty-six trillion, six hundred seventeen billion, four hundred twenty-two million, eight hundred sixty-nine thousand, nine hundred seventy-one".