87001089652 has 24 divisors (see below), whose sum is σ = 161876844360. Its totient is φ = 40771799040.

The previous prime is 87001089649. The next prime is 87001089683. The reversal of 87001089652 is 25698010078.

It can be written as a sum of positive squares in 4 ways, for example, as 21666662416 + 65334427236 = 147196^2 + 255606^2 .

It is a super-2 number, since 2×87001089652² (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 7 ways as a sum of consecutive naturals, for example, 2638027 + ... + 2670802.

It is an arithmetic number, because the mean of its divisors is an integer number (6744868515).

Almost surely, 2^87001089652 is an apocalyptic number.

It is an amenable number.

87001089652 is a deficient number, since it is larger than the sum of its proper divisors (74875754708).

87001089652 is a wasteful number, since it uses less digits than its factorization.

87001089652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5309091 (or 5309089 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 87001089652 in words is "eighty-seven billion, one million, eighty-nine thousand, six hundred fifty-two".