56353764769 has 2 divisors, whose sum is σ = 56353764770. Its totient is φ = 56353764768.

The previous prime is 56353764757. The next prime is 56353764823. The reversal of 56353764769 is 96746735365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44642196369 + 11711568400 = 211287^2 + 108220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56353764769 is a prime.

It is a super-2 number, since 2×56353764769² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56353704769) 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, 28176882384 + 28176882385.

It is an arithmetic number, because the mean of its divisors is an integer number (28176882385).

Almost surely, 2^56353764769 is an apocalyptic number.

It is an amenable number.

56353764769 is a deficient number, since it is larger than the sum of its proper divisors (1).

56353764769 is an equidigital number, since it uses as much as digits as its factorization.

56353764769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 85730400, while the sum is 61.

The spelling of 56353764769 in words is "fifty-six billion, three hundred fifty-three million, seven hundred sixty-four thousand, seven hundred sixty-nine".