6623212487 has 4 divisors (see below), whose sum is σ = 6628474440. Its totient is φ = 6617950536.

The previous prime is 6623212483. The next prime is 6623212537. The reversal of 6623212487 is 7842123266.

6623212487 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7842123266 = 2 ⋅3921061633.

It is a cyclic number.

It is not a de Polignac number, because 6623212487 - 2² = 6623212483 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 (6623212483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2629088 + ... + 2631605.

It is an arithmetic number, because the mean of its divisors is an integer number (1657118610).

Almost surely, 2^6623212487 is an apocalyptic number.

6623212487 is a deficient number, since it is larger than the sum of its proper divisors (5261953).

6623212487 is a wasteful number, since it uses less digits than its factorization.

6623212487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5261952.

The product of its digits is 193536, while the sum is 41.

The square root of 6623212487 is about 81383.1216346485. The cubic root of 6623212487 is about 1877.9739459511.

The spelling of 6623212487 in words is "six billion, six hundred twenty-three million, two hundred twelve thousand, four hundred eighty-seven".