126787344920 has 32 divisors (see below), whose sum is σ = 285285417120. Its totient is φ = 50712468480.

The previous prime is 126787344917. The next prime is 126787344967. The reversal of 126787344920 is 29443787621.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 910664 + ... + 1040616.

It is an arithmetic number, because the mean of its divisors is an integer number (8915169285).

Almost surely, 2^126787344920 is an apocalyptic number.

126787344920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126787344920 is an abundant number, since it is smaller than the sum of its proper divisors (158498072200).

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

126787344920 is a wasteful number, since it uses less digits than its factorization.

126787344920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154355 (or 154351 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 126787344920 in words is "one hundred twenty-six billion, seven hundred eighty-seven million, three hundred forty-four thousand, nine hundred twenty".