634072678616 has 32 divisors (see below), whose sum is σ = 1287739902960. Its totient is φ = 290957308032.

The previous prime is 634072678601. The next prime is 634072678619. The reversal of 634072678616 is 616876270436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634072678619) 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 7 ways as a sum of consecutive naturals, for example, 17602970 + ... + 17638953.

Almost surely, 2^634072678616 is an apocalyptic number.

It is an amenable number.

634072678616 is an abundant number, since it is smaller than the sum of its proper divisors (653667224344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634072678616 is a wasteful number, since it uses less digits than its factorization.

634072678616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35242115 (or 35242111 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 56.

The spelling of 634072678616 in words is "six hundred thirty-four billion, seventy-two million, six hundred seventy-eight thousand, six hundred sixteen".