87867276877 has 2 divisors, whose sum is σ = 87867276878. Its totient is φ = 87867276876.

The previous prime is 87867276853. The next prime is 87867276919. The reversal of 87867276877 is 77867276878.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58457084841 + 29410192036 = 241779^2 + 171494^2 .

It is a cyclic number.

It is not a de Polignac number, because 87867276877 - 2¹⁵ = 87867244109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87867276817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43933638438 + 43933638439.

It is an arithmetic number, because the mean of its divisors is an integer number (43933638439).

Almost surely, 2^87867276877 is an apocalyptic number.

It is an amenable number.

87867276877 is a deficient number, since it is larger than the sum of its proper divisors (1).

87867276877 is an equidigital number, since it uses as much as digits as its factorization.

87867276877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 619573248, while the sum is 73.

Subtracting from 87867276877 its reverse (77867276878), we obtain a palindrome (9999999999).

The spelling of 87867276877 in words is "eighty-seven billion, eight hundred sixty-seven million, two hundred seventy-six thousand, eight hundred seventy-seven".