126499344384 has 208 divisors, whose sum is σ = 391810259840. Its totient is φ = 35548692480.

The previous prime is 126499344379. The next prime is 126499344401. The reversal of 126499344384 is 483443994621.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

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 in 15 ways as a sum of consecutive naturals, for example, 5234922 + ... + 5259030.

Almost surely, 2^126499344384 is an apocalyptic number.

126499344384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126499344384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195905129920).

126499344384 is an abundant number, since it is smaller than the sum of its proper divisors (265310915456).

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

126499344384 is an equidigital number, since it uses as much as digits as its factorization.

126499344384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24204 (or 24182 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 57.

The spelling of 126499344384 in words is "one hundred twenty-six billion, four hundred ninety-nine million, three hundred forty-four thousand, three hundred eighty-four".