126878376813 has 8 divisors (see below), whose sum is σ = 169929785088. Its totient is φ = 84206276544.

The previous prime is 126878376811. The next prime is 126878376857. The reversal of 126878376813 is 318673878621.

It is a happy number.

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

It is not a de Polignac number, because 126878376813 - 2¹ = 126878376811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126878376811) 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 7 ways as a sum of consecutive naturals, for example, 94826220 + ... + 94827557.

It is an arithmetic number, because the mean of its divisors is an integer number (21241223136).

Almost surely, 2^126878376813 is an apocalyptic number.

It is an amenable number.

126878376813 is a deficient number, since it is larger than the sum of its proper divisors (43051408275).

126878376813 is a wasteful number, since it uses less digits than its factorization.

126878376813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189654003.

The product of its digits is 16257024, while the sum is 60.

The spelling of 126878376813 in words is "one hundred twenty-six billion, eight hundred seventy-eight million, three hundred seventy-six thousand, eight hundred thirteen".