18077140444 has 24 divisors (see below), whose sum is σ = 36011380608. Its totient is φ = 7859625840.

The previous prime is 18077140441. The next prime is 18077140597. The reversal of 18077140444 is 44404177081.

It is a junction number, because it is equal to n+sod(n) for n = 18077140397 and 18077140406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18077140441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8930382 + ... + 8932405.

It is an arithmetic number, because the mean of its divisors is an integer number (1500474192).

Almost surely, 2^18077140444 is an apocalyptic number.

It is an amenable number.

18077140444 is a deficient number, since it is larger than the sum of its proper divisors (17934240164).

18077140444 is a wasteful number, since it uses less digits than its factorization.

18077140444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17862825 (or 17862823 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 40.

The spelling of 18077140444 in words is "eighteen billion, seventy-seven million, one hundred forty thousand, four hundred forty-four".