126253670829 has 72 divisors (see below), whose sum is σ = 205484937696. Its totient is φ = 68350089600.

The previous prime is 126253670827. The next prime is 126253670863. The reversal of 126253670829 is 928076352621.

It is a happy number.

It is not a de Polignac number, because 126253670829 - 2¹ = 126253670827 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126253670827) 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 71 ways as a sum of consecutive naturals, for example, 5347719 + ... + 5371275.

It is an arithmetic number, because the mean of its divisors is an integer number (2853957468).

Almost surely, 2^126253670829 is an apocalyptic number.

It is an amenable number.

126253670829 is a deficient number, since it is larger than the sum of its proper divisors (79231266867).

126253670829 is a wasteful number, since it uses less digits than its factorization.

126253670829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23659 (or 23615 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 126253670829 in words is "one hundred twenty-six billion, two hundred fifty-three million, six hundred seventy thousand, eight hundred twenty-nine".