84031288867 has 2 divisors, whose sum is σ = 84031288868. Its totient is φ = 84031288866.

The previous prime is 84031288853. The next prime is 84031288883. The reversal of 84031288867 is 76888213048.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84031288867 - 2¹⁹ = 84030764579 is a prime.

It is a super-2 number, since 2×84031288867² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84031288807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42015644433 + 42015644434.

It is an arithmetic number, because the mean of its divisors is an integer number (42015644434).

Almost surely, 2^84031288867 is an apocalyptic number.

84031288867 is a deficient number, since it is larger than the sum of its proper divisors (1).

84031288867 is an equidigital number, since it uses as much as digits as its factorization.

84031288867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4128768, while the sum is 55.

The spelling of 84031288867 in words is "eighty-four billion, thirty-one million, two hundred eighty-eight thousand, eight hundred sixty-seven".