84478219001 has 8 divisors (see below), whose sum is σ = 92166333408. Its totient is φ = 76791484000.

The previous prime is 84478218997. The next prime is 84478219043. The reversal of 84478219001 is 10091287448.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84478219001 - 2² = 84478218997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84478219601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214655 + ... + 463716.

It is an arithmetic number, because the mean of its divisors is an integer number (11520791676).

Almost surely, 2^84478219001 is an apocalyptic number.

It is an amenable number.

84478219001 is a deficient number, since it is larger than the sum of its proper divisors (7688114407).

84478219001 is a wasteful number, since it uses less digits than its factorization.

84478219001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689703.

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 84478219001 in words is "eighty-four billion, four hundred seventy-eight million, two hundred nineteen thousand, one".