646310434000 has 160 divisors (see below), whose sum is σ = 1948399794432. Its totient is φ = 201447360000.

The previous prime is 646310433983. The next prime is 646310434001. The reversal of 646310434000 is 434013646.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646310434001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1944411 + ... + 2252410.

Almost surely, 2^646310434000 is an apocalyptic number.

It is an amenable number.

646310434000 is an abundant number, since it is smaller than the sum of its proper divisors (1302089360432).

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

646310434000 is a wasteful number, since it uses less digits than its factorization.

646310434000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4196862 (or 4196846 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 646310434000 its reverse (434013646), we get a palindrome (646744447646).

The spelling of 646310434000 in words is "six hundred forty-six billion, three hundred ten million, four hundred thirty-four thousand".