1614869985 has 16 divisors (see below), whose sum is σ = 2632544064. Its totient is φ = 845013312.

The previous prime is 1614869969. The next prime is 1614869987. The reversal of 1614869985 is 5899684161.

It is not a de Polignac number, because 1614869985 - 2⁴ = 1614869969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1614869987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1014847 + ... + 1016436.

It is an arithmetic number, because the mean of its divisors is an integer number (164534004).

Almost surely, 2^1614869985 is an apocalyptic number.

1614869985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1614869985 is a deficient number, since it is larger than the sum of its proper divisors (1017674079).

1614869985 is a wasteful number, since it uses less digits than its factorization.

1614869985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031344.

The product of its digits is 3732480, while the sum is 57.

The square root of 1614869985 is about 40185.4449396793. Note that the first 3 decimals coincide. The cubic root of 1614869985 is about 1173.2192697440.

The spelling of 1614869985 in words is "one billion, six hundred fourteen million, eight hundred sixty-nine thousand, nine hundred eighty-five".