634268742693 has 8 divisors (see below), whose sum is σ = 845700068928. Its totient is φ = 422841622464.

The previous prime is 634268742677. The next prime is 634268742787. The reversal of 634268742693 is 396247862436.

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

It is not a de Polignac number, because 634268742693 - 2⁴ = 634268742677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634268742623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680980 + ... + 1316157.

It is an arithmetic number, because the mean of its divisors is an integer number (105712508616).

Almost surely, 2^634268742693 is an apocalyptic number.

It is an amenable number.

634268742693 is a deficient number, since it is larger than the sum of its proper divisors (211431326235).

634268742693 is a wasteful number, since it uses less digits than its factorization.

634268742693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103003.

The product of its digits is 62705664, while the sum is 60.

The spelling of 634268742693 in words is "six hundred thirty-four billion, two hundred sixty-eight million, seven hundred forty-two thousand, six hundred ninety-three".