634350635875 has 32 divisors (see below), whose sum is σ = 863729298432. Its totient is φ = 461297980000.

The previous prime is 634350635861. The next prime is 634350635899. The reversal of 634350635875 is 578536053436.

It is not a de Polignac number, because 634350635875 - 2¹⁹ = 634350111587 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18312822 + ... + 18347428.

It is an arithmetic number, because the mean of its divisors is an integer number (26991540576).

Almost surely, 2^634350635875 is an apocalyptic number.

634350635875 is a deficient number, since it is larger than the sum of its proper divisors (229378662557).

634350635875 is a wasteful number, since it uses less digits than its factorization.

634350635875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47964 (or 47954 counting only the distinct ones).

The product of its (nonzero) digits is 27216000, while the sum is 55.

The spelling of 634350635875 in words is "six hundred thirty-four billion, three hundred fifty million, six hundred thirty-five thousand, eight hundred seventy-five".