87145971232 has 24 divisors (see below), whose sum is σ = 171698788800. Its totient is φ = 43539929664.

The previous prime is 87145971169. The next prime is 87145971271. The reversal of 87145971232 is 23217954178.

It is a super-3 number, since 3×87145971232³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

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, 990132 + ... + 1074547.

It is an arithmetic number, because the mean of its divisors is an integer number (7154116200).

Almost surely, 2^87145971232 is an apocalyptic number.

It is an amenable number.

87145971232 is a deficient number, since it is larger than the sum of its proper divisors (84552817568).

87145971232 is a wasteful number, since it uses less digits than its factorization.

87145971232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066008 (or 2066000 counting only the distinct ones).

The product of its digits is 846720, while the sum is 49.

The spelling of 87145971232 in words is "eighty-seven billion, one hundred forty-five million, nine hundred seventy-one thousand, two hundred thirty-two".