56702784679 has 2 divisors, whose sum is σ = 56702784680. Its totient is φ = 56702784678.

The previous prime is 56702784661. The next prime is 56702784683. The reversal of 56702784679 is 97648720765.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56702784679 - 2⁹ = 56702784167 is a prime.

It is a super-3 number, since 3×56702784679³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56702782679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28351392339 + 28351392340.

It is an arithmetic number, because the mean of its divisors is an integer number (28351392340).

Almost surely, 2^56702784679 is an apocalyptic number.

56702784679 is a deficient number, since it is larger than the sum of its proper divisors (1).

56702784679 is an equidigital number, since it uses as much as digits as its factorization.

56702784679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 56702784679 in words is "fifty-six billion, seven hundred two million, seven hundred eighty-four thousand, six hundred seventy-nine".