104128866577 has 8 divisors (see below), whose sum is σ = 105258326760. Its totient is φ = 103001337600.

The previous prime is 104128866563. The next prime is 104128866587. The reversal of 104128866577 is 775668821401.

It can be written as a sum of positive squares in 4 ways, for example, as 15486309136 + 88642557441 = 124444^2 + 297729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 104128866577 - 2⁷ = 104128866449 is a prime.

It is a super-2 number, since 2×104128866577² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104128866557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374248 + ... + 590185.

It is an arithmetic number, because the mean of its divisors is an integer number (13157290845).

Almost surely, 2^104128866577 is an apocalyptic number.

It is an amenable number.

104128866577 is a deficient number, since it is larger than the sum of its proper divisors (1129460183).

104128866577 is a wasteful number, since it uses less digits than its factorization.

104128866577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965603.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 104128866577 in words is "one hundred four billion, one hundred twenty-eight million, eight hundred sixty-six thousand, five hundred seventy-seven".