126429252680 has 32 divisors (see below), whose sum is σ = 284516229240. Its totient is φ = 50562739200.

The previous prime is 126429252661. The next prime is 126429252727. The reversal of 126429252680 is 86252924621.

It can be written as a sum of positive squares in 4 ways, for example, as 79038575044 + 47390677636 = 281138^2 + 217694^2 .

It is an unprimeable number.

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, 49169 + ... + 505248.

Almost surely, 2^126429252680 is an apocalyptic number.

126429252680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126429252680 is an abundant number, since it is smaller than the sum of its proper divisors (158086976560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126429252680 is a wasteful number, since it uses less digits than its factorization.

126429252680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560129 (or 560125 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 126429252680 in words is "one hundred twenty-six billion, four hundred twenty-nine million, two hundred fifty-two thousand, six hundred eighty".