126538851679 has 8 divisors (see below), whose sum is σ = 127360099008. Its totient is φ = 125717797920.

The previous prime is 126538851667. The next prime is 126538851683. The reversal of 126538851679 is 976158835621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126538851679 - 2⁹ = 126538851167 is a prime.

It is a super-2 number, since 2×126538851679² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126538851979) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1403994 + ... + 1491400.

It is an arithmetic number, because the mean of its divisors is an integer number (15920012376).

Almost surely, 2^126538851679 is an apocalyptic number.

126538851679 is a deficient number, since it is larger than the sum of its proper divisors (821247329).

126538851679 is an equidigital number, since it uses as much as digits as its factorization.

126538851679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96785.

The product of its digits is 21772800, while the sum is 61.

The spelling of 126538851679 in words is "one hundred twenty-six billion, five hundred thirty-eight million, eight hundred fifty-one thousand, six hundred seventy-nine".