126858859808 has 54 divisors (see below), whose sum is σ = 253272615561. Its totient is φ = 62547947904.

The previous prime is 126858859753. The next prime is 126858859861. The reversal of 126858859808 is 808958858621.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 126830001424 + 28858384 = 356132^2 + 5372^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=251852.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 159170066 + ... + 159170862.

Almost surely, 2^126858859808 is an apocalyptic number.

It is an amenable number.

126858859808 is a deficient number, since it is larger than the sum of its proper divisors (126413755753).

126858859808 is an frugal number, since it uses more digits than its factorization.

126858859808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 88473600, while the sum is 68.

The spelling of 126858859808 in words is "one hundred twenty-six billion, eight hundred fifty-eight million, eight hundred fifty-nine thousand, eight hundred eight".