87510188671028 has 6 divisors (see below), whose sum is σ = 153142830174306. Its totient is φ = 43755094335512.

The previous prime is 87510188671007. The next prime is 87510188671049. The reversal of 87510188671028 is 82017688101578.

It is an interprime number because it is at equal distance from previous prime (87510188671007) and next prime (87510188671049).

It can be written as a sum of positive squares in only one way, i.e., 85268455064464 + 2241733606564 = 9234092^2 + 1497242^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10938773583875 + ... + 10938773583882.

It is an arithmetic number, because the mean of its divisors is an integer number (25523805029051).

Almost surely, 2^{87510188671028} is an apocalyptic number.

It is an amenable number.

87510188671028 is a deficient number, since it is larger than the sum of its proper divisors (65632641503278).

87510188671028 is a wasteful number, since it uses less digits than its factorization.

87510188671028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21877547167761 (or 21877547167759 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 62.

The spelling of 87510188671028 in words is "eighty-seven trillion, five hundred ten billion, one hundred eighty-eight million, six hundred seventy-one thousand, twenty-eight".