634278411061 has 12 divisors (see below), whose sum is σ = 650834660448. Its totient is φ = 618052009824.

The previous prime is 634278411047. The next prime is 634278411103. The reversal of 634278411061 is 160114872436.

It is not a de Polignac number, because 634278411061 - 2²³ = 634270022453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634278410999 and 634278411017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634278411161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274705 + ... + 1159318.

It is an arithmetic number, because the mean of its divisors is an integer number (54236221704).

Almost surely, 2^634278411061 is an apocalyptic number.

It is an amenable number.

634278411061 is a deficient number, since it is larger than the sum of its proper divisors (16556249387).

634278411061 is an equidigital number, since it uses as much as digits as its factorization.

634278411061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434252 (or 1434179 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 634278411061 in words is "six hundred thirty-four billion, two hundred seventy-eight million, four hundred eleven thousand, sixty-one".