87144332001280 has 76 divisors (see below), whose sum is σ = 209146001033700. Its totient is φ = 34857732276224.

The previous prime is 87144332001149. The next prime is 87144332001329. The reversal of 87144332001280 is 8210023344178.

It can be written as a sum of positive squares in 2 ways, for example, as 38386847186944 + 48757484814336 = 6195712^2 + 6982656^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31932205 + ... + 34553644.

Almost surely, 2^{87144332001280} is an apocalyptic number.

87144332001280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87144332001280 is an abundant number, since it is smaller than the sum of its proper divisors (122001669032420).

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

87144332001280 is an frugal number, since it uses more digits than its factorization.

87144332001280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66485890 (or 66485856 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 87144332001280 in words is "eighty-seven trillion, one hundred forty-four billion, three hundred thirty-two million, one thousand, two hundred eighty".