56744731651 has 2 divisors, whose sum is σ = 56744731652. Its totient is φ = 56744731650.

The previous prime is 56744731633. The next prime is 56744731661. The reversal of 56744731651 is 15613744765.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56744731651 - 2⁹ = 56744731139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56744731595 and 56744731604.

It is not a weakly prime, because it can be changed into another prime (56744731661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28372365825 + 28372365826.

It is an arithmetic number, because the mean of its divisors is an integer number (28372365826).

Almost surely, 2^56744731651 is an apocalyptic number.

56744731651 is a deficient number, since it is larger than the sum of its proper divisors (1).

56744731651 is an equidigital number, since it uses as much as digits as its factorization.

56744731651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2116800, while the sum is 49.

The spelling of 56744731651 in words is "fifty-six billion, seven hundred forty-four million, seven hundred thirty-one thousand, six hundred fifty-one".