867278484500761 has 2 divisors, whose sum is σ = 867278484500762. Its totient is φ = 867278484500760.

The previous prime is 867278484500731. The next prime is 867278484500773. The reversal of 867278484500761 is 167005484872768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 528078561601600 + 339199922899161 = 22979960^2 + 18417381^2 .

It is a cyclic number.

It is not a de Polignac number, because 867278484500761 - 2⁷ = 867278484500633 is a prime.

It is not a weakly prime, because it can be changed into another prime (867278484500731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433639242250380 + 433639242250381.

It is an arithmetic number, because the mean of its divisors is an integer number (433639242250381).

Almost surely, 2^{867278484500761} is an apocalyptic number.

It is an amenable number.

867278484500761 is a deficient number, since it is larger than the sum of its proper divisors (1).

867278484500761 is an equidigital number, since it uses as much as digits as its factorization.

867278484500761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1011548160, while the sum is 73.

The spelling of 867278484500761 in words is "eight hundred sixty-seven trillion, two hundred seventy-eight billion, four hundred eighty-four million, five hundred thousand, seven hundred sixty-one".