87873047357472 has 120 divisors (see below), whose sum is σ = 278311590802476. Its totient is φ = 27037860715008.

The previous prime is 87873047357443. The next prime is 87873047357477. The reversal of 87873047357472 is 27475374037878.

87873047357472 is a `hidden beast` number, since 8 + 7 + 8 + 7 + 3 + 0 + 47 + 3 + 574 + 7 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 85713452520336 + 2159594837136 = 9258156^2 + 1469556^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 87873047357472.

It is not an unprimeable number, because it can be changed into a prime (87873047357477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1303875483 + ... + 1303942874.

Almost surely, 2^{87873047357472} is an apocalyptic number.

It is an amenable number.

87873047357472 is an abundant number, since it is smaller than the sum of its proper divisors (190438543445004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87873047357472 is a wasteful number, since it uses less digits than its factorization.

87873047357472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607818392 (or 2607818375 counting only the distinct ones).

The product of its (nonzero) digits is 1548933120, while the sum is 72.

The spelling of 87873047357472 in words is "eighty-seven trillion, eight hundred seventy-three billion, forty-seven million, three hundred fifty-seven thousand, four hundred seventy-two".