634255061532 has 12 divisors (see below), whose sum is σ = 1479928476936. Its totient is φ = 211418353840.

The previous prime is 634255061507. The next prime is 634255061543. The reversal of 634255061532 is 235160552436.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×634255061532² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26427294219 + ... + 26427294242.

It is an arithmetic number, because the mean of its divisors is an integer number (123327373078).

Almost surely, 2^634255061532 is an apocalyptic number.

It is an amenable number.

634255061532 is an abundant number, since it is smaller than the sum of its proper divisors (845673415404).

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

634255061532 is a wasteful number, since it uses less digits than its factorization.

634255061532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52854588468 (or 52854588466 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 634255061532 in words is "six hundred thirty-four billion, two hundred fifty-five million, sixty-one thousand, five hundred thirty-two".