634447534471 has 16 divisors (see below), whose sum is σ = 645128386560. Its totient is φ = 623836006560.

The previous prime is 634447534459. The next prime is 634447534549. The reversal of 634447534471 is 174435744436.

It is a cyclic number.

It is not a de Polignac number, because 634447534471 - 2⁵ = 634447534439 is a prime.

It is a super-3 number, since 3×634447534471³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634447534411) 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 15 ways as a sum of consecutive naturals, for example, 35429106 + ... + 35447008.

It is an arithmetic number, because the mean of its divisors is an integer number (40320524160).

Almost surely, 2^634447534471 is an apocalyptic number.

634447534471 is a deficient number, since it is larger than the sum of its proper divisors (10680852089).

634447534471 is a wasteful number, since it uses less digits than its factorization.

634447534471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19806.

The product of its digits is 13547520, while the sum is 52.

The spelling of 634447534471 in words is "six hundred thirty-four billion, four hundred forty-seven million, five hundred thirty-four thousand, four hundred seventy-one".