126002170727 has 4 divisors (see below), whose sum is σ = 131480526000. Its totient is φ = 120523815456.

The previous prime is 126002170717. The next prime is 126002170799. The reversal of 126002170727 is 727071200621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126002170727 - 2⁸ = 126002170471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126002170717) by changing a digit.

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, 2739177602 + ... + 2739177647.

It is an arithmetic number, because the mean of its divisors is an integer number (32870131500).

Almost surely, 2^126002170727 is an apocalyptic number.

126002170727 is a deficient number, since it is larger than the sum of its proper divisors (5478355273).

126002170727 is an equidigital number, since it uses as much as digits as its factorization.

126002170727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5478355272.

The product of its (nonzero) digits is 16464, while the sum is 35.

The spelling of 126002170727 in words is "one hundred twenty-six billion, two million, one hundred seventy thousand, seven hundred twenty-seven".