867828152291 has 2 divisors, whose sum is σ = 867828152292. Its totient is φ = 867828152290.

The previous prime is 867828152227. The next prime is 867828152353. The reversal of 867828152291 is 192251828768.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 867828152291 - 2⁶ = 867828152227 is a prime.

It is a super-2 number, since 2×867828152291² (a number of 25 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 867828152291.

It is not a weakly prime, because it can be changed into another prime (867828152491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433914076145 + 433914076146.

It is an arithmetic number, because the mean of its divisors is an integer number (433914076146).

Almost surely, 2^867828152291 is an apocalyptic number.

867828152291 is a deficient number, since it is larger than the sum of its proper divisors (1).

867828152291 is an equidigital number, since it uses as much as digits as its factorization.

867828152291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7741440, while the sum is 59.

The spelling of 867828152291 in words is "eight hundred sixty-seven billion, eight hundred twenty-eight million, one hundred fifty-two thousand, two hundred ninety-one".