63245321456215 has 4 divisors (see below), whose sum is σ = 75894385747464. Its totient is φ = 50596257164968.

The previous prime is 63245321456171. The next prime is 63245321456323. The reversal of 63245321456215 is 51265412354236.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63245321456215 - 2¹⁵ = 63245321423447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6324532145617 + ... + 6324532145626.

It is an arithmetic number, because the mean of its divisors is an integer number (18973596436866).

Almost surely, 2^{63245321456215} is an apocalyptic number.

63245321456215 is a deficient number, since it is larger than the sum of its proper divisors (12649064291249).

63245321456215 is a wasteful number, since it uses less digits than its factorization.

63245321456215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12649064291248.

The product of its digits is 5184000, while the sum is 49.

The spelling of 63245321456215 in words is "sixty-three trillion, two hundred forty-five billion, three hundred twenty-one million, four hundred fifty-six thousand, two hundred fifteen".