84987444478948 has 24 divisors (see below), whose sum is σ = 162389721037824. Its totient is φ = 38597093868000.

The previous prime is 84987444478933. The next prime is 84987444478949.

84987444478948 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (84987444478949) 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 7 ways as a sum of consecutive naturals, for example, 839016615 + ... + 839117902.

It is an arithmetic number, because the mean of its divisors is an integer number (6766238376576).

Almost surely, 2^{84987444478948} is an apocalyptic number.

It is an amenable number.

84987444478948 is a deficient number, since it is larger than the sum of its proper divisors (77402276558876).

84987444478948 is a wasteful number, since it uses less digits than its factorization.

84987444478948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678135683 (or 1678135681 counting only the distinct ones).

The product of its digits is 66588770304, while the sum is 88.

The spelling of 84987444478948 in words is "eighty-four trillion, nine hundred eighty-seven billion, four hundred forty-four million, four hundred seventy-eight thousand, nine hundred forty-eight".