634045217570 has 16 divisors (see below), whose sum is σ = 1155727992960. Its totient is φ = 250407731184.

The previous prime is 634045217569. The next prime is 634045217587. The reversal of 634045217570 is 75712540436.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401293652 + ... + 401295231.

It is an arithmetic number, because the mean of its divisors is an integer number (72232999560).

Almost surely, 2^634045217570 is an apocalyptic number.

634045217570 is a deficient number, since it is larger than the sum of its proper divisors (521682775390).

634045217570 is a wasteful number, since it uses less digits than its factorization.

634045217570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802588969.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 634045217570 in words is "six hundred thirty-four billion, forty-five million, two hundred seventeen thousand, five hundred seventy".