84905991922 has 8 divisors (see below), whose sum is σ = 127374373872. Its totient is φ = 42447867300.

The previous prime is 84905991917. The next prime is 84905991971. The reversal of 84905991922 is 22919950948.

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

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, 2543604 + ... + 2576767.

It is an arithmetic number, because the mean of its divisors is an integer number (15921796734).

Almost surely, 2^84905991922 is an apocalyptic number.

84905991922 is a deficient number, since it is larger than the sum of its proper divisors (42468381950).

84905991922 is a wasteful number, since it uses less digits than its factorization.

84905991922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5128664.

The product of its (nonzero) digits is 4199040, while the sum is 58.

The spelling of 84905991922 in words is "eighty-four billion, nine hundred five million, nine hundred ninety-one thousand, nine hundred twenty-two".