645624101034 has 80 divisors (see below), whose sum is σ = 1578367153440. Its totient is φ = 195621985440.

The previous prime is 645624101033. The next prime is 645624101107. The reversal of 645624101034 is 430101426546.

645624101034 is a `hidden beast` number, since 6 + 4 + 5 + 624 + 10 + 10 + 3 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 645624101034.

It is not an unprimeable number, because it can be changed into a prime (645624101033) 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 39 ways as a sum of consecutive naturals, for example, 24387697 + ... + 24414155.

It is an arithmetic number, because the mean of its divisors is an integer number (19729589418).

Almost surely, 2^645624101034 is an apocalyptic number.

645624101034 is an abundant number, since it is smaller than the sum of its proper divisors (932743052406).

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

645624101034 is a wasteful number, since it uses less digits than its factorization.

645624101034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40177 (or 40168 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 645624101034 in words is "six hundred forty-five billion, six hundred twenty-four million, one hundred one thousand, thirty-four".