6126643645 has 8 divisors (see below), whose sum is σ = 7352411904. Its totient is φ = 4901021904.

The previous prime is 6126643639. The next prime is 6126643667. The reversal of 6126643645 is 5463466216.

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 6126643645 - 2²⁷ = 5992425917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 105532 + ... + 152938.

It is an arithmetic number, because the mean of its divisors is an integer number (919051488).

Almost surely, 2^6126643645 is an apocalyptic number.

It is an amenable number.

6126643645 is a deficient number, since it is larger than the sum of its proper divisors (1225768259).

6126643645 is a wasteful number, since it uses less digits than its factorization.

6126643645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73259.

The product of its digits is 622080, while the sum is 43.

The square root of 6126643645 is about 78272.8793708268. The cubic root of 6126643645 is about 1829.8165029464.

The spelling of 6126643645 in words is "six billion, one hundred twenty-six million, six hundred forty-three thousand, six hundred forty-five".