867276148657871 has 2 divisors, whose sum is σ = 867276148657872. Its totient is φ = 867276148657870.

The previous prime is 867276148657847. The next prime is 867276148657907. The reversal of 867276148657871 is 178756841672768.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-867276148657871 is a prime.

It is a super-2 number, since 2×867276148657871² (a number of 31 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 867276148657871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (867276148647871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433638074328935 + 433638074328936.

It is an arithmetic number, because the mean of its divisors is an integer number (433638074328936).

Almost surely, 2^{867276148657871} is an apocalyptic number.

867276148657871 is a deficient number, since it is larger than the sum of its proper divisors (1).

867276148657871 is an equidigital number, since it uses as much as digits as its factorization.

867276148657871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10621255680, while the sum is 83.

The spelling of 867276148657871 in words is "eight hundred sixty-seven trillion, two hundred seventy-six billion, one hundred forty-eight million, six hundred fifty-seven thousand, eight hundred seventy-one".