126743216604 has 12 divisors (see below), whose sum is σ = 295734172104. Its totient is φ = 42247738864.

The previous prime is 126743216581. The next prime is 126743216641. The reversal of 126743216604 is 406612347621.

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 2×126743216604² (a number of 23 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, 5280967347 + ... + 5280967370.

It is an arithmetic number, because the mean of its divisors is an integer number (24644514342).

Almost surely, 2^126743216604 is an apocalyptic number.

It is an amenable number.

126743216604 is an abundant number, since it is smaller than the sum of its proper divisors (168990955500).

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

126743216604 is a wasteful number, since it uses less digits than its factorization.

126743216604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10561934724 (or 10561934722 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 126743216604 in words is "one hundred twenty-six billion, seven hundred forty-three million, two hundred sixteen thousand, six hundred four".