126429253029 has 32 divisors (see below), whose sum is σ = 192145981440. Its totient is φ = 82122739056.

The previous prime is 126429253019. The next prime is 126429253051. The reversal of 126429253029 is 920352924621.

126429253029 is a `hidden beast` number, since 1 + 2 + 6 + 4 + 2 + 92 + 530 + 29 = 666.

It is not a de Polignac number, because 126429253029 - 2²⁷ = 126295035301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126429253019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59604 + ... + 506370.

It is an arithmetic number, because the mean of its divisors is an integer number (6004561920).

Almost surely, 2^126429253029 is an apocalyptic number.

It is an amenable number.

126429253029 is a deficient number, since it is larger than the sum of its proper divisors (65716728411).

126429253029 is a wasteful number, since it uses less digits than its factorization.

126429253029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447046 (or 447040 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 126429253029 in words is "one hundred twenty-six billion, four hundred twenty-nine million, two hundred fifty-three thousand, twenty-nine".