201912085633 has 4 divisors (see below), whose sum is σ = 203872397248. Its totient is φ = 199951774020.

The previous prime is 201912085579. The next prime is 201912085667. The reversal of 201912085633 is 336580219102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201912085633 - 2⁹ = 201912085121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201912085433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 980155653 + ... + 980155858.

It is an arithmetic number, because the mean of its divisors is an integer number (50968099312).

Almost surely, 2^201912085633 is an apocalyptic number.

It is an amenable number.

201912085633 is a deficient number, since it is larger than the sum of its proper divisors (1960311615).

201912085633 is a wasteful number, since it uses less digits than its factorization.

201912085633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960311614.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 201912085633 in words is "two hundred one billion, nine hundred twelve million, eighty-five thousand, six hundred thirty-three".