646213233127 has 8 divisors (see below), whose sum is σ = 805668446592. Its totient is φ = 503542779000.

The previous prime is 646213233103. The next prime is 646213233151. The reversal of 646213233127 is 721332312646.

It is an interprime number because it is at equal distance from previous prime (646213233103) and next prime (646213233151).

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 646213233127 - 2¹⁵ = 646213200359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 646213233127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646213236127) 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, 4196189749 + ... + 4196189902.

It is an arithmetic number, because the mean of its divisors is an integer number (100708555824).

Almost surely, 2^646213233127 is an apocalyptic number.

646213233127 is a deficient number, since it is larger than the sum of its proper divisors (159455213465).

646213233127 is a wasteful number, since it uses less digits than its factorization.

646213233127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8392379669.

The product of its digits is 217728, while the sum is 40.

The spelling of 646213233127 in words is "six hundred forty-six billion, two hundred thirteen million, two hundred thirty-three thousand, one hundred twenty-seven".