87474038005 has 4 divisors (see below), whose sum is σ = 104968845612. Its totient is φ = 69979230400.

The previous prime is 87474037957. The next prime is 87474038011. The reversal of 87474038005 is 50083047478.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50083047478 = 2 ⋅25041523739.

It can be written as a sum of positive squares in 2 ways, for example, as 50108374801 + 37365663204 = 223849^2 + 193302^2 .

It is not a de Polignac number, because 87474038005 - 2⁹ = 87474037493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8747403796 + ... + 8747403805.

It is an arithmetic number, because the mean of its divisors is an integer number (26242211403).

Almost surely, 2^87474038005 is an apocalyptic number.

It is an amenable number.

87474038005 is a deficient number, since it is larger than the sum of its proper divisors (17494807607).

87474038005 is a wasteful number, since it uses less digits than its factorization.

87474038005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17494807606.

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 87474038005 in words is "eighty-seven billion, four hundred seventy-four million, thirty-eight thousand, five".