635148429444 has 81 divisors (see below), whose sum is σ = 1644252229893. Its totient is φ = 206725567104.

The previous prime is 635148429317. The next prime is 635148429467. The reversal of 635148429444 is 444924841536.

The square root of 635148429444 is 796962.

It is a perfect power (a square), and thus also a powerful number.

635148429444 is a `hidden beast` number, since 6 + 3 + 514 + 84 + 2 + 9 + 4 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 583601267844 + 51547161600 = 763938^2 + 227040^2 .

It is a super-2 number, since 2×635148429444² (a number of 24 digits) contains 22 as substring.

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 26 ways as a sum of consecutive naturals, for example, 205614652 + ... + 205617740.

Almost surely, 2^635148429444 is an apocalyptic number.

635148429444 is the 796962-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 635148429444

635148429444 is an abundant number, since it is smaller than the sum of its proper divisors (1009103800449).

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

635148429444 is an equidigital number, since it uses as much as digits as its factorization.

635148429444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6274 (or 3137 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 54.

The spelling of 635148429444 in words is "six hundred thirty-five billion, one hundred forty-eight million, four hundred twenty-nine thousand, four hundred forty-four".