87869872852 has 12 divisors (see below), whose sum is σ = 153909950740. Its totient is φ = 43895601216.

The previous prime is 87869872807. The next prime is 87869872879. The reversal of 87869872852 is 25827896878.

It can be written as a sum of positive squares in 2 ways, for example, as 41483912976 + 46385959876 = 203676^2 + 215374^2 .

It is a super-2 number, since 2×87869872852² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9828777 + ... + 9837712.

Almost surely, 2^87869872852 is an apocalyptic number.

It is an amenable number.

87869872852 is a deficient number, since it is larger than the sum of its proper divisors (66040077888).

87869872852 is a wasteful number, since it uses less digits than its factorization.

87869872852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19667610 (or 19667608 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 70.

The spelling of 87869872852 in words is "eighty-seven billion, eight hundred sixty-nine million, eight hundred seventy-two thousand, eight hundred fifty-two".