56867079289 has 4 divisors (see below), whose sum is σ = 57430119780. Its totient is φ = 56304038800.

The previous prime is 56867079277. The next prime is 56867079329. The reversal of 56867079289 is 98297076865.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39843353664 + 17023725625 = 199608^2 + 130475^2 .

It is a cyclic number.

It is not a de Polignac number, because 56867079289 - 2¹⁵ = 56867046521 is a prime.

It is a super-2 number, since 2×56867079289² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56867079989) 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 in 3 ways as a sum of consecutive naturals, for example, 281520094 + ... + 281520295.

It is an arithmetic number, because the mean of its divisors is an integer number (14357529945).

Almost surely, 2^56867079289 is an apocalyptic number.

It is an amenable number.

56867079289 is a deficient number, since it is larger than the sum of its proper divisors (563040491).

56867079289 is a wasteful number, since it uses less digits than its factorization.

56867079289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563040490.

The product of its (nonzero) digits is 91445760, while the sum is 67.

The spelling of 56867079289 in words is "fifty-six billion, eight hundred sixty-seven million, seventy-nine thousand, two hundred eighty-nine".