7985169149 has 8 divisors (see below), whose sum is σ = 8011664640. Its totient is φ = 7958698000.

The previous prime is 7985169139. The next prime is 7985169163. The reversal of 7985169149 is 9419615897.

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 7985169149 - 2¹² = 7985165053 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 (7985169139) 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, 839279 + ... + 848739.

It is an arithmetic number, because the mean of its divisors is an integer number (1001458080).

Almost surely, 2^7985169149 is an apocalyptic number.

It is an amenable number.

7985169149 is a deficient number, since it is larger than the sum of its proper divisors (26495491).

7985169149 is a wasteful number, since it uses less digits than its factorization.

7985169149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12171.

The product of its digits is 4898880, while the sum is 59.

The square root of 7985169149 is about 89359.7736624260. The cubic root of 7985169149 is about 1998.7633312328.

The spelling of 7985169149 in words is "seven billion, nine hundred eighty-five million, one hundred sixty-nine thousand, one hundred forty-nine".