15308216020438 has 64 divisors (see below), whose sum is σ = 25640346009600. Its totient is φ = 6795836354560.

The previous prime is 15308216020421. The next prime is 15308216020469. The reversal of 15308216020438 is 83402061280351.

It is a junction number, because it is equal to n+sod(n) for n = 15308216020394 and 15308216020403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 316372395 + ... + 316420777.

It is an arithmetic number, because the mean of its divisors is an integer number (400630406400).

Almost surely, 2^{15308216020438} is an apocalyptic number.

15308216020438 is a deficient number, since it is larger than the sum of its proper divisors (10332129989162).

15308216020438 is a wasteful number, since it uses less digits than its factorization.

15308216020438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50037.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 15308216020438 in words is "fifteen trillion, three hundred eight billion, two hundred sixteen million, twenty thousand, four hundred thirty-eight".