126325637632 has 40 divisors (see below), whose sum is σ = 252655731900. Its totient is φ = 63099961344.

The previous prime is 126325637629. The next prime is 126325637681. The reversal of 126325637632 is 236736523621.

It can be written as a sum of positive squares in 2 ways, for example, as 106234276096 + 20091361536 = 325936^2 + 141744^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394344 + ... + 638872.

Almost surely, 2^126325637632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126325637632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126327865950).

126325637632 is an abundant number, since it is smaller than the sum of its proper divisors (126330094268).

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

126325637632 is an equidigital number, since it uses as much as digits as its factorization.

126325637632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245556 (or 245540 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 46.

The spelling of 126325637632 in words is "one hundred twenty-six billion, three hundred twenty-five million, six hundred thirty-seven thousand, six hundred thirty-two".