22019793985 has 32 divisors (see below), whose sum is σ = 31836045312. Its totient is φ = 14301282240.

The previous prime is 22019793977. The next prime is 22019794001. The reversal of 22019793985 is 58939791022.

It is not a de Polignac number, because 22019793985 - 2³ = 22019793977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164907 + ... + 266896.

It is an arithmetic number, because the mean of its divisors is an integer number (994876416).

Almost surely, 2^22019793985 is an apocalyptic number.

It is an amenable number.

22019793985 is a deficient number, since it is larger than the sum of its proper divisors (9816251327).

22019793985 is a wasteful number, since it uses less digits than its factorization.

22019793985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431893.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 22019793985 in words is "twenty-two billion, nineteen million, seven hundred ninety-three thousand, nine hundred eighty-five".