13215638750224 has 45 divisors (see below), whose sum is σ = 25740252650367. Its totient is φ = 6573174661152.

The previous prime is 13215638750219. The next prime is 13215638750267. The reversal of 13215638750224 is 42205783651231.

The square root of 13215638750224 is 3635332.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2893721989 + ... + 2893726555.

Almost surely, 2^{13215638750224} is an apocalyptic number.

13215638750224 is the 3635332-nd square number.

It is an amenable number.

13215638750224 is a deficient number, since it is larger than the sum of its proper divisors (12524613900143).

13215638750224 is an frugal number, since it uses more digits than its factorization.

13215638750224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9540 (or 4768 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 49.

Multiplying 13215638750224 by its sum of digits (49), we get a square (647566298760976 = 25447324²).

The spelling of 13215638750224 in words is "thirteen trillion, two hundred fifteen billion, six hundred thirty-eight million, seven hundred fifty thousand, two hundred twenty-four".