18170769089388 has 24 divisors (see below), whose sum is σ = 44892488338992. Its totient is φ = 5700633439744.

The previous prime is 18170769089353. The next prime is 18170769089437. The reversal of 18170769089388 is 88398096707181.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44536198545 + ... + 44536198952.

It is an arithmetic number, because the mean of its divisors is an integer number (1870520347458).

Almost surely, 2^{18170769089388} is an apocalyptic number.

It is an amenable number.

18170769089388 is an abundant number, since it is smaller than the sum of its proper divisors (26721719249604).

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

18170769089388 is a wasteful number, since it uses less digits than its factorization.

18170769089388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89072397521 (or 89072397519 counting only the distinct ones).

The product of its (nonzero) digits is 292626432, while the sum is 75.

The spelling of 18170769089388 in words is "eighteen trillion, one hundred seventy billion, seven hundred sixty-nine million, eighty-nine thousand, three hundred eighty-eight".