646959245127 has 8 divisors (see below), whose sum is σ = 928967121264. Its totient is φ = 398128766208.

The previous prime is 646959245099. The next prime is 646959245137. The reversal of 646959245127 is 721542959646.

646959245127 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 not a de Polignac number, because 646959245127 - 2⁷ = 646959244999 is a prime.

It is a super-2 number, since 2×646959245127² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646959245137) 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, 8294349258 + ... + 8294349335.

It is an arithmetic number, because the mean of its divisors is an integer number (116120890158).

Almost surely, 2^646959245127 is an apocalyptic number.

646959245127 is a deficient number, since it is larger than the sum of its proper divisors (282007876137).

646959245127 is a wasteful number, since it uses less digits than its factorization.

646959245127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16588698609.

The product of its digits is 32659200, while the sum is 60.

The spelling of 646959245127 in words is "six hundred forty-six billion, nine hundred fifty-nine million, two hundred forty-five thousand, one hundred twenty-seven".