87144235480 has 16 divisors (see below), whose sum is σ = 196074529920. Its totient is φ = 34857694176.

The previous prime is 87144235379. The next prime is 87144235481. The reversal of 87144235480 is 8453244178.

It is a self number, because there is not a number n which added to its sum of digits gives 87144235480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87144235481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1089302904 + ... + 1089302983.

It is an arithmetic number, because the mean of its divisors is an integer number (12254658120).

Almost surely, 2^87144235480 is an apocalyptic number.

It is an amenable number.

87144235480 is an abundant number, since it is smaller than the sum of its proper divisors (108930294440).

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

87144235480 is a wasteful number, since it uses less digits than its factorization.

87144235480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178605898 (or 2178605894 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 46.

It can be divided in two parts, 87144 and 235480, that added together give a square (322624 = 568²).

The spelling of 87144235480 in words is "eighty-seven billion, one hundred forty-four million, two hundred thirty-five thousand, four hundred eighty".