634252460443 has 4 divisors (see below), whose sum is σ = 724859954800. Its totient is φ = 543644966088.

The previous prime is 634252460357. The next prime is 634252460453. The reversal of 634252460443 is 344064252436.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 634252460443 - 2²¹ = 634250363291 is a prime.

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 634252460443.

It is not an unprimeable number, because it can be changed into a prime (634252460453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45303747168 + ... + 45303747181.

It is an arithmetic number, because the mean of its divisors is an integer number (181214988700).

Almost surely, 2^634252460443 is an apocalyptic number.

634252460443 is a deficient number, since it is larger than the sum of its proper divisors (90607494357).

634252460443 is an equidigital number, since it uses as much as digits as its factorization.

634252460443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90607494356.

The product of its (nonzero) digits is 1658880, while the sum is 43.

The spelling of 634252460443 in words is "six hundred thirty-four billion, two hundred fifty-two million, four hundred sixty thousand, four hundred forty-three".