84448143987 has 16 divisors (see below), whose sum is σ = 118702682112. Its totient is φ = 53323464960.

The previous prime is 84448143961. The next prime is 84448143991. The reversal of 84448143987 is 78934184448.

It is not a de Polignac number, because 84448143987 - 2⁷ = 84448143859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84448143987.

It is not an unprimeable number, because it can be changed into a prime (84448143947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9655678 + ... + 9664419.

It is an arithmetic number, because the mean of its divisors is an integer number (7418917632).

Almost surely, 2^84448143987 is an apocalyptic number.

84448143987 is a deficient number, since it is larger than the sum of its proper divisors (34254538125).

84448143987 is a wasteful number, since it uses less digits than its factorization.

84448143987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19320178.

The product of its digits is 24772608, while the sum is 60.

The spelling of 84448143987 in words is "eighty-four billion, four hundred forty-eight million, one hundred forty-three thousand, nine hundred eighty-seven".