1984051011 has 8 divisors (see below), whose sum is σ = 2801013264. Its totient is φ = 1244894720.

The previous prime is 1984051009. The next prime is 1984051033. The reversal of 1984051011 is 1101504891.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1984051011 - 2¹ = 1984051009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1984051011.

It is not an unprimeable number, because it can be changed into a prime (1984051411) 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, 19451430 + ... + 19451531.

It is an arithmetic number, because the mean of its divisors is an integer number (350126658).

Almost surely, 2^1984051011 is an apocalyptic number.

1984051011 is a deficient number, since it is larger than the sum of its proper divisors (816962253).

1984051011 is a wasteful number, since it uses less digits than its factorization.

1984051011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38902981.

The product of its (nonzero) digits is 1440, while the sum is 30.

The square root of 1984051011 is about 44542.6875143384. The cubic root of 1984051011 is about 1256.5630300154.

The spelling of 1984051011 in words is "one billion, nine hundred eighty-four million, fifty-one thousand, eleven".