2009018077 has 4 divisors (see below), whose sum is σ = 2191656096. Its totient is φ = 1826380060.

The previous prime is 2009018069. The next prime is 2009018101. The reversal of 2009018077 is 7708109002.

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 2009018077 - 2³ = 2009018069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009018047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91318993 + ... + 91319014.

It is an arithmetic number, because the mean of its divisors is an integer number (547914024).

Almost surely, 2^2009018077 is an apocalyptic number.

It is an amenable number.

2009018077 is a deficient number, since it is larger than the sum of its proper divisors (182638019).

2009018077 is a wasteful number, since it uses less digits than its factorization.

2009018077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182638018.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 2009018077 is about 44822.0713153687. The cubic root of 2009018077 is about 1261.8118882887.

The spelling of 2009018077 in words is "two billion, nine million, eighteen thousand, seventy-seven".