2011993092 has 18 divisors (see below), whose sum is σ = 5085871518. Its totient is φ = 670664352.

The previous prime is 2011993063. The next prime is 2011993133. The reversal of 2011993092 is 2903991102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1938993156 + 72999936 = 44034^2 + 8544^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 55888697 = 2011993092 / (2 + 0 + 1 + 1 + 9 + 9 + 3 + 0 + 9 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27944313 + ... + 27944384.

Almost surely, 2^2011993092 is an apocalyptic number.

It is an amenable number.

2011993092 is an abundant number, since it is smaller than the sum of its proper divisors (3073878426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2011993092 is a wasteful number, since it uses less digits than its factorization.

2011993092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55888707 (or 55888702 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 2011993092 is about 44855.2459808215. The cubic root of 2011993092 is about 1262.4344242253.

The spelling of 2011993092 in words is "two billion, eleven million, nine hundred ninety-three thousand, ninety-two".