126716858772 has 96 divisors (see below), whose sum is σ = 346269229824. Its totient is φ = 35309952000.

The previous prime is 126716858677. The next prime is 126716858777. The reversal of 126716858772 is 277858617621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126716858777) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 17564238 + ... + 17571450.

It is an arithmetic number, because the mean of its divisors is an integer number (3606971144).

Almost surely, 2^126716858772 is an apocalyptic number.

126716858772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126716858772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173134614912).

126716858772 is an abundant number, since it is smaller than the sum of its proper divisors (219552371052).

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

126716858772 is a wasteful number, since it uses less digits than its factorization.

126716858772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12369 (or 12367 counting only the distinct ones).

The product of its digits is 15805440, while the sum is 60.

The spelling of 126716858772 in words is "one hundred twenty-six billion, seven hundred sixteen million, eight hundred fifty-eight thousand, seven hundred seventy-two".