126885373861 has 4 divisors (see below), whose sum is σ = 126891718272. Its totient is φ = 126879029452.

The previous prime is 126885373847. The next prime is 126885373871. The reversal of 126885373861 is 168373588621.

It is a happy number.

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 126885373861 - 2⁵ = 126885373829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126885373796 and 126885373805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126885373801) 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, 3142111 + ... + 3182236.

It is an arithmetic number, because the mean of its divisors is an integer number (31722929568).

Almost surely, 2^126885373861 is an apocalyptic number.

It is an amenable number.

126885373861 is a deficient number, since it is larger than the sum of its proper divisors (6344411).

126885373861 is an equidigital number, since it uses as much as digits as its factorization.

126885373861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6344410.

The product of its digits is 11612160, while the sum is 58.

The spelling of 126885373861 in words is "one hundred twenty-six billion, eight hundred eighty-five million, three hundred seventy-three thousand, eight hundred sixty-one".