87723179024 has 20 divisors (see below), whose sum is σ = 183037787436. Its totient is φ = 40487620992.

The previous prime is 87723179023. The next prime is 87723179041. The reversal of 87723179024 is 42097132778.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28538020624 + 59185158400 = 168932^2 + 243280^2 .

It is a super-2 number, since 2×87723179024² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87723179023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210872819 + ... + 210873234.

Almost surely, 2^87723179024 is an apocalyptic number.

It is an amenable number.

87723179024 is an abundant number, since it is smaller than the sum of its proper divisors (95314608412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87723179024 is a wasteful number, since it uses less digits than its factorization.

87723179024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421746074 (or 421746068 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 87723179024 in words is "eighty-seven billion, seven hundred twenty-three million, one hundred seventy-nine thousand, twenty-four".