126855693852720 has 400 divisors, whose sum is σ = 459055243842912. Its totient is φ = 28977398661120.

The previous prime is 126855693852703. The next prime is 126855693852731. The reversal of 126855693852720 is 27258396558621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 929406880 + ... + 929543360.

Almost surely, 2^{126855693852720} is an apocalyptic number.

126855693852720 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 126855693852720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229527621921456).

126855693852720 is an abundant number, since it is smaller than the sum of its proper divisors (332199549990192).

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

126855693852720 is a wasteful number, since it uses less digits than its factorization.

126855693852720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138138 (or 138111 counting only the distinct ones).

The product of its (nonzero) digits is 435456000, while the sum is 69.

The spelling of 126855693852720 in words is "one hundred twenty-six trillion, eight hundred fifty-five billion, six hundred ninety-three million, eight hundred fifty-two thousand, seven hundred twenty".