646246046827 has 8 divisors (see below), whose sum is σ = 680525711360. Its totient is φ = 611993053800.

The previous prime is 646246046779. The next prime is 646246046833. The reversal of 646246046827 is 728640642646.

It is a happy number.

646246046827 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 646246046827 - 2¹¹ = 646246044779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (646246046857) 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, 6618123 + ... + 6715060.

It is an arithmetic number, because the mean of its divisors is an integer number (85065713920).

Almost surely, 2^646246046827 is an apocalyptic number.

646246046827 is a deficient number, since it is larger than the sum of its proper divisors (34279664533).

646246046827 is a wasteful number, since it uses less digits than its factorization.

646246046827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13335753.

The product of its (nonzero) digits is 18579456, while the sum is 55.

The spelling of 646246046827 in words is "six hundred forty-six billion, two hundred forty-six million, forty-six thousand, eight hundred twenty-seven".