28288590380577 has 64 divisors (see below), whose sum is σ = 46698452582400. Its totient is φ = 16855222063680.

The previous prime is 28288590380563. The next prime is 28288590380579. The reversal of 28288590380577 is 77508309588282.

28288590380577 is a `hidden beast` number, since 2 + 8 + 28 + 8 + 590 + 3 + 8 + 0 + 5 + 7 + 7 = 666.

It is not a de Polignac number, because 28288590380577 - 2⁸ = 28288590380321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28288590380579) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24777253 + ... + 25893810.

It is an arithmetic number, because the mean of its divisors is an integer number (729663321600).

Almost surely, 2^{28288590380577} is an apocalyptic number.

28288590380577 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

28288590380577 is a deficient number, since it is larger than the sum of its proper divisors (18409862201823).

28288590380577 is a wasteful number, since it uses less digits than its factorization.

28288590380577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50671155 (or 50671149 counting only the distinct ones).

The product of its (nonzero) digits is 541900800, while the sum is 72.

The spelling of 28288590380577 in words is "twenty-eight trillion, two hundred eighty-eight billion, five hundred ninety million, three hundred eighty thousand, five hundred seventy-seven".