634432252540163 has 8 divisors (see below), whose sum is σ = 790980470699520. Its totient is φ = 494362794187080.

The previous prime is 634432252540133. The next prime is 634432252540169. The reversal of 634432252540163 is 361045252234436.

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

It is not a de Polignac number, because 634432252540163 - 2²⁶ = 634432185431299 is a prime.

It is a super-2 number, since 2×634432252540163² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634432252540169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4119689951483 + ... + 4119689951636.

It is an arithmetic number, because the mean of its divisors is an integer number (98872558837440).

Almost surely, 2^{634432252540163} is an apocalyptic number.

634432252540163 is a deficient number, since it is larger than the sum of its proper divisors (156548218159357).

634432252540163 is a wasteful number, since it uses less digits than its factorization.

634432252540163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8239379903137.

The product of its (nonzero) digits is 12441600, while the sum is 50.

The spelling of 634432252540163 in words is "six hundred thirty-four trillion, four hundred thirty-two billion, two hundred fifty-two million, five hundred forty thousand, one hundred sixty-three".