634554387146 has 8 divisors (see below), whose sum is σ = 955218882564. Its totient is φ = 316148092960.

The previous prime is 634554387143. The next prime is 634554387149. The reversal of 634554387146 is 641783455436.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (634554387143) and next prime (634554387149).

It can be written as a sum of positive squares in 2 ways, for example, as 499126707121 + 135427680025 = 706489^2 + 368005^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 634554387091 and 634554387100.

It is not an unprimeable number, because it can be changed into a prime (634554387143) 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, 564549605 + ... + 564550728.

Almost surely, 2^634554387146 is an apocalyptic number.

634554387146 is a deficient number, since it is larger than the sum of its proper divisors (320664495418).

634554387146 is a wasteful number, since it uses less digits than its factorization.

634554387146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129100616.

The product of its digits is 29030400, while the sum is 56.

The spelling of 634554387146 in words is "six hundred thirty-four billion, five hundred fifty-four million, three hundred eighty-seven thousand, one hundred forty-six".