87173467429 has 2 divisors, whose sum is σ = 87173467430. Its totient is φ = 87173467428.

The previous prime is 87173467417. The next prime is 87173467481. The reversal of 87173467429 is 92476437178.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67443051204 + 19730416225 = 259698^2 + 140465^2 .

It is a cyclic number.

It is not a de Polignac number, because 87173467429 - 2²⁵ = 87139912997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87173467229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43586733714 + 43586733715.

It is an arithmetic number, because the mean of its divisors is an integer number (43586733715).

Almost surely, 2^87173467429 is an apocalyptic number.

It is an amenable number.

87173467429 is a deficient number, since it is larger than the sum of its proper divisors (1).

87173467429 is an equidigital number, since it uses as much as digits as its factorization.

87173467429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14224896, while the sum is 58.

The spelling of 87173467429 in words is "eighty-seven billion, one hundred seventy-three million, four hundred sixty-seven thousand, four hundred twenty-nine".