56464646461 has 2 divisors, whose sum is σ = 56464646462. Its totient is φ = 56464646460.

The previous prime is 56464646437. The next prime is 56464646473. The reversal of 56464646461 is 16464646465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40612325625 + 15852320836 = 201525^2 + 125906^2 .

It is a cyclic number.

It is not a de Polignac number, because 56464646461 - 2¹⁷ = 56464515389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56464646399 and 56464646408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56464646261) 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, 28232323230 + 28232323231.

It is an arithmetic number, because the mean of its divisors is an integer number (28232323231).

Almost surely, 2^56464646461 is an apocalyptic number.

It is an amenable number.

56464646461 is a deficient number, since it is larger than the sum of its proper divisors (1).

56464646461 is an equidigital number, since it uses as much as digits as its factorization.

56464646461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9953280, while the sum is 52.

The spelling of 56464646461 in words is "fifty-six billion, four hundred sixty-four million, six hundred forty-six thousand, four hundred sixty-one".