126479716877 has 4 divisors (see below), whose sum is σ = 130559707776. Its totient is φ = 122399725980.

The previous prime is 126479716861. The next prime is 126479716889. The reversal of 126479716877 is 778617974621.

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 126479716877 - 2⁴ = 126479716861 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 (126439716877) 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, 2039995403 + ... + 2039995464.

It is an arithmetic number, because the mean of its divisors is an integer number (32639926944).

Almost surely, 2^126479716877 is an apocalyptic number.

It is an amenable number.

126479716877 is a deficient number, since it is larger than the sum of its proper divisors (4079990899).

126479716877 is an equidigital number, since it uses as much as digits as its factorization.

126479716877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4079990898.

The product of its digits is 49787136, while the sum is 65.

The spelling of 126479716877 in words is "one hundred twenty-six billion, four hundred seventy-nine million, seven hundred sixteen thousand, eight hundred seventy-seven".