646235051412 has 12 divisors (see below), whose sum is σ = 1507881786656. Its totient is φ = 215411683800.

The previous prime is 646235051393. The next prime is 646235051447. The reversal of 646235051412 is 214150532646.

646235051412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26926460464 + ... + 26926460487.

Almost surely, 2^646235051412 is an apocalyptic number.

It is an amenable number.

646235051412 is an abundant number, since it is smaller than the sum of its proper divisors (861646735244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

646235051412 is a wasteful number, since it uses less digits than its factorization.

646235051412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53852920958 (or 53852920956 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 646235051412 in words is "six hundred forty-six billion, two hundred thirty-five million, fifty-one thousand, four hundred twelve".