87173467431 has 8 divisors (see below), whose sum is σ = 116255368704. Its totient is φ = 58103605560.

The previous prime is 87173467429. The next prime is 87173467481. The reversal of 87173467431 is 13476437178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87173467431 - 2¹ = 87173467429 is a prime.

It is a super-2 number, since 2×87173467431² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87173467481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2992941 + ... + 3021926.

It is an arithmetic number, because the mean of its divisors is an integer number (14531921088).

Almost surely, 2^87173467431 is an apocalyptic number.

87173467431 is a deficient number, since it is larger than the sum of its proper divisors (29081901273).

87173467431 is a wasteful number, since it uses less digits than its factorization.

87173467431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6019701.

The product of its digits is 2370816, while the sum is 51.

The spelling of 87173467431 in words is "eighty-seven billion, one hundred seventy-three million, four hundred sixty-seven thousand, four hundred thirty-one".