28077566815359 has 24 divisors (see below), whose sum is σ = 40595328730112. Its totient is φ = 18700451499600.

The previous prime is 28077566815339. The next prime is 28077566815373. The reversal of 28077566815359 is 95351866577082.

28077566815359 is a `hidden beast` number, since 2 + 8 + 0 + 7 + 7 + 5 + 6 + 6 + 81 + 535 + 9 = 666.

It is not a de Polignac number, because 28077566815359 - 2¹⁷ = 28077566684287 is a prime.

It is a super-5 number, since 5×28077566815359⁵ (a number of 68 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28077566815339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 450485772 + ... + 450548094.

Almost surely, 2^{28077566815359} is an apocalyptic number.

28077566815359 is a deficient number, since it is larger than the sum of its proper divisors (12517761914753).

28077566815359 is a wasteful number, since it uses less digits than its factorization.

28077566815359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109467 (or 109464 counting only the distinct ones).

The product of its (nonzero) digits is 762048000, while the sum is 72.

The spelling of 28077566815359 in words is "twenty-eight trillion, seventy-seven billion, five hundred sixty-six million, eight hundred fifteen thousand, three hundred fifty-nine".