87071585732 has 6 divisors (see below), whose sum is σ = 152375275038. Its totient is φ = 43535792864.

The previous prime is 87071585723. The next prime is 87071585749. The reversal of 87071585732 is 23758517078.

It can be written as a sum of positive squares in only one way, i.e., 54127883716 + 32943702016 = 232654^2 + 181504^2 .

It is a super-2 number, since 2×87071585732² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10883948213 + ... + 10883948220.

It is an arithmetic number, because the mean of its divisors is an integer number (25395879173).

Almost surely, 2^87071585732 is an apocalyptic number.

It is an amenable number.

87071585732 is a deficient number, since it is larger than the sum of its proper divisors (65303689306).

87071585732 is a wasteful number, since it uses less digits than its factorization.

87071585732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21767896437 (or 21767896435 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 53.

The spelling of 87071585732 in words is "eighty-seven billion, seventy-one million, five hundred eighty-five thousand, seven hundred thirty-two".