645610453014 has 32 divisors (see below), whose sum is σ = 1299953710080. Its totient is φ = 213748416000.

The previous prime is 645610452979. The next prime is 645610453073. The reversal of 645610453014 is 410354016546.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6983734 + ... + 7075574.

It is an arithmetic number, because the mean of its divisors is an integer number (40623553440).

Almost surely, 2^645610453014 is an apocalyptic number.

645610453014 is an abundant number, since it is smaller than the sum of its proper divisors (654343257066).

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

645610453014 is a wasteful number, since it uses less digits than its factorization.

645610453014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99756.

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

The spelling of 645610453014 in words is "six hundred forty-five billion, six hundred ten million, four hundred fifty-three thousand, fourteen".