285575679604477 has 2 divisors, whose sum is σ = 285575679604478. Its totient is φ = 285575679604476.

The previous prime is 285575679604463. The next prime is 285575679604511. The reversal of 285575679604477 is 774406976575582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150918546881881 + 134657132722596 = 12284891^2 + 11604186^2 .

It is a cyclic number.

It is not a de Polignac number, because 285575679604477 - 2²³ = 285575671215869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 285575679604477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285575679604777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142787839802238 + 142787839802239.

It is an arithmetic number, because the mean of its divisors is an integer number (142787839802239).

Almost surely, 2^{285575679604477} is an apocalyptic number.

It is an amenable number.

285575679604477 is a deficient number, since it is larger than the sum of its proper divisors (1).

285575679604477 is an equidigital number, since it uses as much as digits as its factorization.

285575679604477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24893568000, while the sum is 82.

The spelling of 285575679604477 in words is "two hundred eighty-five trillion, five hundred seventy-five billion, six hundred seventy-nine million, six hundred four thousand, four hundred seventy-seven".