872015987090 has 32 divisors (see below), whose sum is σ = 1588414121280. Its totient is φ = 344655662400.

The previous prime is 872015987057. The next prime is 872015987093. The reversal of 872015987090 is 90789510278.

It is not an unprimeable number, because it can be changed into a prime (872015987093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1193321 + ... + 1779900.

It is an arithmetic number, because the mean of its divisors is an integer number (49637941290).

Almost surely, 2^872015987090 is an apocalyptic number.

872015987090 is a deficient number, since it is larger than the sum of its proper divisors (716398134190).

872015987090 is a wasteful number, since it uses less digits than its factorization.

872015987090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973578.

The product of its (nonzero) digits is 2540160, while the sum is 56.

The spelling of 872015987090 in words is "eight hundred seventy-two billion, fifteen million, nine hundred eighty-seven thousand, ninety".