126547639596 has 144 divisors (see below), whose sum is σ = 387762735360. Its totient is φ = 33991850880.

The previous prime is 126547639567. The next prime is 126547639607. The reversal of 126547639596 is 695936745621.

126547639596 is a `hidden beast` number, since 1 + 2 + 6 + 5 + 4 + 7 + 6 + 39 + 596 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 526350 + ... + 728106.

Almost surely, 2^126547639596 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 126547639596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193881367680).

126547639596 is an abundant number, since it is smaller than the sum of its proper divisors (261215095764).

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

126547639596 is a wasteful number, since it uses less digits than its factorization.

126547639596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201924 (or 201919 counting only the distinct ones).

The product of its digits is 73483200, while the sum is 63.

The spelling of 126547639596 in words is "one hundred twenty-six billion, five hundred forty-seven million, six hundred thirty-nine thousand, five hundred ninety-six".