126866062877401 has 4 divisors (see below), whose sum is σ = 127020213622912. Its totient is φ = 126711912131892.

The previous prime is 126866062877377. The next prime is 126866062877429. The reversal of 126866062877401 is 104778260668621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126866062877401 - 2¹³ = 126866062869209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126866062877101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77075371521 + ... + 77075373166.

It is an arithmetic number, because the mean of its divisors is an integer number (31755053405728).

Almost surely, 2^{126866062877401} is an apocalyptic number.

It is an amenable number.

126866062877401 is a deficient number, since it is larger than the sum of its proper divisors (154150745511).

126866062877401 is an equidigital number, since it uses as much as digits as its factorization.

126866062877401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154150745510.

The product of its (nonzero) digits is 65028096, while the sum is 64.

The spelling of 126866062877401 in words is "one hundred twenty-six trillion, eight hundred sixty-six billion, sixty-two million, eight hundred seventy-seven thousand, four hundred one".