12520000653647 has 8 divisors (see below), whose sum is σ = 12577289593344. Its totient is φ = 12462721941528.

The previous prime is 12520000653619. The next prime is 12520000653689. The reversal of 12520000653647 is 74635600002521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12520000653647 - 2²² = 12519996459343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12520000653607) 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 7 ways as a sum of consecutive naturals, for example, 97613 + ... + 5004950.

It is an arithmetic number, because the mean of its divisors is an integer number (1572161199168).

Almost surely, 2^{12520000653647} is an apocalyptic number.

12520000653647 is a deficient number, since it is larger than the sum of its proper divisors (57288939697).

12520000653647 is a wasteful number, since it uses less digits than its factorization.

12520000653647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5113789.

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 12520000653647 in words is "twelve trillion, five hundred twenty billion, six hundred fifty-three thousand, six hundred forty-seven".