84901143844 has 96 divisors (see below), whose sum is σ = 173445511680. Its totient is φ = 35936524800.

The previous prime is 84901143841. The next prime is 84901143853. The reversal of 84901143844 is 44834110948.

It is a junction number, because it is equal to n+sod(n) for n = 84901143794 and 84901143803.

It is not an unprimeable number, because it can be changed into a prime (84901143841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34413499 + ... + 34415965.

It is an arithmetic number, because the mean of its divisors is an integer number (1806724080).

Almost surely, 2^84901143844 is an apocalyptic number.

It is an amenable number.

84901143844 is an abundant number, since it is smaller than the sum of its proper divisors (88544367836).

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

84901143844 is a wasteful number, since it uses less digits than its factorization.

84901143844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2969 (or 2967 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 84901143844 in words is "eighty-four billion, nine hundred one million, one hundred forty-three thousand, eight hundred forty-four".