634145432146 has 8 divisors (see below), whose sum is σ = 953768332044. Its totient is φ = 316222654800.

The previous prime is 634145432111. The next prime is 634145432161. The reversal of 634145432146 is 641234541436.

It can be written as a sum of positive squares in 2 ways, for example, as 623169726921 + 10975705225 = 789411^2 + 104765^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×634145432146² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425029705 + ... + 425031196.

Almost surely, 2^634145432146 is an apocalyptic number.

634145432146 is a deficient number, since it is larger than the sum of its proper divisors (319622899898).

634145432146 is a wasteful number, since it uses less digits than its factorization.

634145432146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850061276.

The product of its digits is 829440, while the sum is 43.

The spelling of 634145432146 in words is "six hundred thirty-four billion, one hundred forty-five million, four hundred thirty-two thousand, one hundred forty-six".