13820919502 has 8 divisors (see below), whose sum is σ = 22326100776. Its totient is φ = 6378885912.

The previous prime is 13820919493. The next prime is 13820919509. The reversal of 13820919502 is 20591902831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13820919509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265786888 + ... + 265786939.

It is an arithmetic number, because the mean of its divisors is an integer number (2790762597).

Almost surely, 2^13820919502 is an apocalyptic number.

13820919502 is a deficient number, since it is larger than the sum of its proper divisors (8505181274).

13820919502 is a wasteful number, since it uses less digits than its factorization.

13820919502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531573842.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 13820919502 in words is "thirteen billion, eight hundred twenty million, nine hundred nineteen thousand, five hundred two".