87956972167 has 2 divisors, whose sum is σ = 87956972168. Its totient is φ = 87956972166.

The previous prime is 87956972161. The next prime is 87956972177. The reversal of 87956972167 is 76127965978.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87956972167 - 2¹⁹ = 87956447879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87956972161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43978486083 + 43978486084.

It is an arithmetic number, because the mean of its divisors is an integer number (43978486084).

Almost surely, 2^87956972167 is an apocalyptic number.

87956972167 is a deficient number, since it is larger than the sum of its proper divisors (1).

87956972167 is an equidigital number, since it uses as much as digits as its factorization.

87956972167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80015040, while the sum is 67.

The spelling of 87956972167 in words is "eighty-seven billion, nine hundred fifty-six million, nine hundred seventy-two thousand, one hundred sixty-seven".