634716706956 has 24 divisors (see below), whose sum is σ = 1481018775600. Its totient is φ = 211570360512.

The previous prime is 634716706891. The next prime is 634716706969. The reversal of 634716706956 is 659607617436.

It is a self number, because there is not a number n which added to its sum of digits gives 634716706956.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2129970 + ... + 2409606.

It is an arithmetic number, because the mean of its divisors is an integer number (61709115650).

Almost surely, 2^634716706956 is an apocalyptic number.

It is an amenable number.

634716706956 is an abundant number, since it is smaller than the sum of its proper divisors (846302068644).

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

634716706956 is a wasteful number, since it uses less digits than its factorization.

634716706956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468793 (or 468791 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 60.

The spelling of 634716706956 in words is "six hundred thirty-four billion, seven hundred sixteen million, seven hundred six thousand, nine hundred fifty-six".