6447906245 has 8 divisors (see below), whose sum is σ = 8440895520. Its totient is φ = 4689386320.

The previous prime is 6447906229. The next prime is 6447906247. The reversal of 6447906245 is 5426097446.

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

It is not a de Polignac number, because 6447906245 - 2⁴ = 6447906229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6447906245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6447906247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58617275 + ... + 58617384.

It is an arithmetic number, because the mean of its divisors is an integer number (1055111940).

Almost surely, 2^6447906245 is an apocalyptic number.

It is an amenable number.

6447906245 is a deficient number, since it is larger than the sum of its proper divisors (1992989275).

6447906245 is a wasteful number, since it uses less digits than its factorization.

6447906245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117234675.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The square root of 6447906245 is about 80298.8558137661. The cubic root of 6447906245 is about 1861.2565453347.

The spelling of 6447906245 in words is "six billion, four hundred forty-seven million, nine hundred six thousand, two hundred forty-five".