634722447407 has 8 divisors (see below), whose sum is σ = 649530748416. Its totient is φ = 619916297112.

The previous prime is 634722447377. The next prime is 634722447421. The reversal of 634722447407 is 704744227436.

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

It is a cyclic number.

It is not a de Polignac number, because 634722447407 - 2²⁸ = 634454011951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634722447487) 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, 67298 + ... + 1128704.

It is an arithmetic number, because the mean of its divisors is an integer number (81191343552).

Almost surely, 2^634722447407 is an apocalyptic number.

634722447407 is a deficient number, since it is larger than the sum of its proper divisors (14808301009).

634722447407 is a wasteful number, since it uses less digits than its factorization.

634722447407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075357.

The product of its (nonzero) digits is 6322176, while the sum is 50.

The spelling of 634722447407 in words is "six hundred thirty-four billion, seven hundred twenty-two million, four hundred forty-seven thousand, four hundred seven".