126878601424 has 10 divisors (see below), whose sum is σ = 245827290290. Its totient is φ = 63439300704.

The previous prime is 126878601403. The next prime is 126878601449. The reversal of 126878601424 is 424106878621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 80667360400 + 46211241024 = 284020^2 + 214968^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3964956279 + ... + 3964956310.

It is an arithmetic number, because the mean of its divisors is an integer number (24582729029).

Almost surely, 2^126878601424 is an apocalyptic number.

It is an amenable number.

126878601424 is a deficient number, since it is larger than the sum of its proper divisors (118948688866).

126878601424 is an equidigital number, since it uses as much as digits as its factorization.

126878601424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7929912597 (or 7929912591 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 49.

The spelling of 126878601424 in words is "one hundred twenty-six billion, eight hundred seventy-eight million, six hundred one thousand, four hundred twenty-four".