126386287500 has 576 divisors, whose sum is σ = 433727239680. Its totient is φ = 28300800000.

The previous prime is 126386287463. The next prime is 126386287519. The reversal of 126386287500 is 5782683621.

It is a self number, because there is not a number n which added to its sum of digits gives 126386287500.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 469837366 + ... + 469837634.

It is an arithmetic number, because the mean of its divisors is an integer number (752998680).

Almost surely, 2^126386287500 is an apocalyptic number.

126386287500 is a gapful number since it is divisible by the number (10) 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 126386287500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216863619840).

126386287500 is an abundant number, since it is smaller than the sum of its proper divisors (307340952180).

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

126386287500 is a wasteful number, since it uses less digits than its factorization.

126386287500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 126386287500 in words is "one hundred twenty-six billion, three hundred eighty-six million, two hundred eighty-seven thousand, five hundred".