126732705472 has 28 divisors (see below), whose sum is σ = 258282114880. Its totient is φ = 61653747456.

The previous prime is 126732705461. The next prime is 126732705569. The reversal of 126732705472 is 274507237621.

It is a super-2 number, since 2×126732705472² (a number of 23 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 3 ways as a sum of consecutive naturals, for example, 26757072 + ... + 26761807.

Almost surely, 2^126732705472 is an apocalyptic number.

It is an amenable number.

126732705472 is an abundant number, since it is smaller than the sum of its proper divisors (131549409408).

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

126732705472 is an equidigital number, since it uses as much as digits as its factorization.

126732705472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53518928 (or 53518918 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 46.

The spelling of 126732705472 in words is "one hundred twenty-six billion, seven hundred thirty-two million, seven hundred five thousand, four hundred seventy-two".