14187542985 has 128 divisors (see below), whose sum is σ = 32813752320. Its totient is φ = 5639673600.

The previous prime is 14187542981. The next prime is 14187543011. The reversal of 14187542985 is 58924578141.

14187542985 is a `hidden beast` number, since 1 + 4 + 1 + 8 + 7 + 542 + 98 + 5 = 666.

It is not a de Polignac number, because 14187542985 - 2² = 14187542981 is a prime.

It is a super-3 number, since 3×14187542985³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (14187542981) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 209415 + ... + 268755.

It is an arithmetic number, because the mean of its divisors is an integer number (256357440).

Almost surely, 2^14187542985 is an apocalyptic number.

14187542985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

14187542985 is an abundant number, since it is smaller than the sum of its proper divisors (18626209335).

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

14187542985 is a wasteful number, since it uses less digits than its factorization.

14187542985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59396 (or 59390 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 54.

The spelling of 14187542985 in words is "fourteen billion, one hundred eighty-seven million, five hundred forty-two thousand, nine hundred eighty-five".