12352621645 has 16 divisors (see below), whose sum is σ = 18243872640. Its totient is φ = 7818801984.

The previous prime is 12352621637. The next prime is 12352621691. The reversal of 12352621645 is 54612625321.

It is not a de Polignac number, because 12352621645 - 2³ = 12352621637 is a prime.

It is a super-3 number, since 3×12352621645³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13573855 + ... + 13574764.

It is an arithmetic number, because the mean of its divisors is an integer number (1140242040).

Almost surely, 2^12352621645 is an apocalyptic number.

It is an amenable number.

12352621645 is a deficient number, since it is larger than the sum of its proper divisors (5891250995).

12352621645 is a wasteful number, since it uses less digits than its factorization.

12352621645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27148644.

The product of its digits is 86400, while the sum is 37.

The spelling of 12352621645 in words is "twelve billion, three hundred fifty-two million, six hundred twenty-one thousand, six hundred forty-five".