634443652031 has 16 divisors (see below), whose sum is σ = 729404520000. Its totient is φ = 540565463808.

The previous prime is 634443651971. The next prime is 634443652033. The reversal of 634443652031 is 130256344436.

It is a cyclic number.

It is not a de Polignac number, because 634443652031 - 2¹⁴ = 634443635647 is a prime.

It is a super-2 number, since 2×634443652031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 634443652031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634443652033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6916475 + ... + 7007603.

It is an arithmetic number, because the mean of its divisors is an integer number (45587782500).

Almost surely, 2^634443652031 is an apocalyptic number.

634443652031 is a deficient number, since it is larger than the sum of its proper divisors (94960867969).

634443652031 is a wasteful number, since it uses less digits than its factorization.

634443652031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97058.

The product of its (nonzero) digits is 622080, while the sum is 41.

Adding to 634443652031 its reverse (130256344436), we get a palindrome (764699996467).

The spelling of 634443652031 in words is "six hundred thirty-four billion, four hundred forty-three million, six hundred fifty-two thousand, thirty-one".