12520322619 has 32 divisors (see below), whose sum is σ = 19933261824. Its totient is φ = 6834754080.

The previous prime is 12520322597. The next prime is 12520322623. The reversal of 12520322619 is 91622302521.

It is not a de Polignac number, because 12520322619 - 2⁵ = 12520322587 is a prime.

It is a super-2 number, since 2×12520322619² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12520322619.

It is not an unprimeable number, because it can be changed into a prime (12520322119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 375732 + ... + 407694.

It is an arithmetic number, because the mean of its divisors is an integer number (622914432).

Almost surely, 2^12520322619 is an apocalyptic number.

12520322619 is a deficient number, since it is larger than the sum of its proper divisors (7412939205).

12520322619 is a wasteful number, since it uses less digits than its factorization.

12520322619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32807.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 12520322619 in words is "twelve billion, five hundred twenty million, three hundred twenty-two thousand, six hundred nineteen".