56778487763 has 2 divisors, whose sum is σ = 56778487764. Its totient is φ = 56778487762.

The previous prime is 56778487747. The next prime is 56778487837. The reversal of 56778487763 is 36778487765.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56778487763 - 2⁴ = 56778487747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56778487693 and 56778487702.

It is not a weakly prime, because it can be changed into another prime (56778487063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28389243881 + 28389243882.

It is an arithmetic number, because the mean of its divisors is an integer number (28389243882).

Almost surely, 2^56778487763 is an apocalyptic number.

56778487763 is a deficient number, since it is larger than the sum of its proper divisors (1).

56778487763 is an equidigital number, since it uses as much as digits as its factorization.

56778487763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331914240, while the sum is 68.

The spelling of 56778487763 in words is "fifty-six billion, seven hundred seventy-eight million, four hundred eighty-seven thousand, seven hundred sixty-three".