13998587630 has 48 divisors (see below), whose sum is σ = 27100792080. Its totient is φ = 5191705728.

The previous prime is 13998587621. The next prime is 13998587657. The reversal of 13998587630 is 3678589931.

It is a self number, because there is not a number n which added to its sum of digits gives 13998587630.

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 23 ways as a sum of consecutive naturals, for example, 403034 + ... + 436386.

It is an arithmetic number, because the mean of its divisors is an integer number (564599835).

Almost surely, 2^13998587630 is an apocalyptic number.

13998587630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13998587630 is a deficient number, since it is larger than the sum of its proper divisors (13102204450).

13998587630 is a wasteful number, since it uses less digits than its factorization.

13998587630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33473 (or 33426 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 13998587630 in words is "thirteen billion, nine hundred ninety-eight million, five hundred eighty-seven thousand, six hundred thirty".