887579776777 has 2 divisors, whose sum is σ = 887579776778. Its totient is φ = 887579776776.

The previous prime is 887579776753. The next prime is 887579776789. The reversal of 887579776777 is 777677975788.

887579776777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 728195982336 + 159383794441 = 853344^2 + 399229^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-887579776777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 887579776694 and 887579776703.

It is not a weakly prime, because it can be changed into another prime (887579771777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 443789888388 + 443789888389.

It is an arithmetic number, because the mean of its divisors is an integer number (443789888389).

Almost surely, 2^887579776777 is an apocalyptic number.

It is an amenable number.

887579776777 is a deficient number, since it is larger than the sum of its proper divisors (1).

887579776777 is an equidigital number, since it uses as much as digits as its factorization.

887579776777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14230823040, while the sum is 85.

The spelling of 887579776777 in words is "eight hundred eighty-seven billion, five hundred seventy-nine million, seven hundred seventy-six thousand, seven hundred seventy-seven".