13987624685 has 8 divisors (see below), whose sum is σ = 17514938880. Its totient is φ = 10703573584.

The previous prime is 13987624663. The next prime is 13987624699. The reversal of 13987624685 is 58642678931.

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 13987624685 - 2²² = 13983430381 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 60815645 + ... + 60815874.

It is an arithmetic number, because the mean of its divisors is an integer number (2189367360).

Almost surely, 2^13987624685 is an apocalyptic number.

It is an amenable number.

13987624685 is a deficient number, since it is larger than the sum of its proper divisors (3527314195).

13987624685 is a wasteful number, since it uses less digits than its factorization.

13987624685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121631547.

The product of its digits is 17418240, while the sum is 59.

The spelling of 13987624685 in words is "thirteen billion, nine hundred eighty-seven million, six hundred twenty-four thousand, six hundred eighty-five".