645633414462 has 16 divisors (see below), whose sum is σ = 1293854544000. Its totient is φ = 214779852312.

The previous prime is 645633414451. The next prime is 645633414463. The reversal of 645633414462 is 264414336546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645633414463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107818218 + ... + 107824205.

It is an arithmetic number, because the mean of its divisors is an integer number (80865909000).

Almost surely, 2^645633414462 is an apocalyptic number.

645633414462 is an abundant number, since it is smaller than the sum of its proper divisors (648221129538).

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

645633414462 is a wasteful number, since it uses less digits than its factorization.

645633414462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215642927.

The product of its digits is 4976640, while the sum is 48.

The spelling of 645633414462 in words is "six hundred forty-five billion, six hundred thirty-three million, four hundred fourteen thousand, four hundred sixty-two".