87502885869 has 24 divisors (see below), whose sum is σ = 135770333760. Its totient is φ = 49982649024.

The previous prime is 87502885867. The next prime is 87502885903. The reversal of 87502885869 is 96858820578.

It is not a de Polignac number, because 87502885869 - 2¹ = 87502885867 is a prime.

It is a super-2 number, since 2×87502885869² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87502885867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279697 + ... + 503225.

It is an arithmetic number, because the mean of its divisors is an integer number (5657097240).

Almost surely, 2^87502885869 is an apocalyptic number.

It is an amenable number.

87502885869 is a deficient number, since it is larger than the sum of its proper divisors (48267447891).

87502885869 is a wasteful number, since it uses less digits than its factorization.

87502885869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226209 (or 226202 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 66.

The spelling of 87502885869 in words is "eighty-seven billion, five hundred two million, eight hundred eighty-five thousand, eight hundred sixty-nine".