634432253431055 has 8 divisors (see below), whose sum is σ = 779023790259792. Its totient is φ = 495742411983168.

The previous prime is 634432253431019. The next prime is 634432253431091. The reversal of 634432253431055 is 550134352234436.

It is an interprime number because it is at equal distance from previous prime (634432253431019) and next prime (634432253431091).

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 634432253431055 - 2⁶ = 634432253430991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634432253430994 and 634432253431012.

It is a congruent number.

It is an unprimeable number.

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, 1475423844974 + ... + 1475423845403.

It is an arithmetic number, because the mean of its divisors is an integer number (97377973782474).

Almost surely, 2^{634432253431055} is an apocalyptic number.

634432253431055 is a deficient number, since it is larger than the sum of its proper divisors (144591536828737).

634432253431055 is a wasteful number, since it uses less digits than its factorization.

634432253431055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2950847690425.

The product of its (nonzero) digits is 15552000, while the sum is 50.

The spelling of 634432253431055 in words is "six hundred thirty-four trillion, four hundred thirty-two billion, two hundred fifty-three million, four hundred thirty-one thousand, fifty-five".