126283754520 has 288 divisors, whose sum is σ = 520833427920. Its totient is φ = 26240739840.

The previous prime is 126283754501. The next prime is 126283754551. The reversal of 126283754520 is 25457382621.

126283754520 is a `hidden beast` number, since 1 + 2 + 6 + 2 + 83 + 7 + 545 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 71 ways as a sum of consecutive naturals, for example, 131367 + ... + 519446.

Almost surely, 2^126283754520 is an apocalyptic number.

126283754520 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 126283754520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260416713960).

126283754520 is an abundant number, since it is smaller than the sum of its proper divisors (394549673400).

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

126283754520 is a wasteful number, since it uses less digits than its factorization.

126283754520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650855 (or 650841 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 126283754520 in words is "one hundred twenty-six billion, two hundred eighty-three million, seven hundred fifty-four thousand, five hundred twenty".