126263710440 has 160 divisors (see below), whose sum is σ = 485013070080. Its totient is φ = 28860271488.

The previous prime is 126263710423. The next prime is 126263710453. The reversal of 126263710440 is 44017362621.

126263710440 is a `hidden beast` number, since 1 + 2 + 6 + 2 + 637 + 10 + 4 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 126263710395 and 126263710404.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2760912 + ... + 2806271.

It is an arithmetic number, because the mean of its divisors is an integer number (3031331688).

Almost surely, 2^126263710440 is an apocalyptic number.

126263710440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126263710440 is an abundant number, since it is smaller than the sum of its proper divisors (358749359640).

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

126263710440 is a wasteful number, since it uses less digits than its factorization.

126263710440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5567213 (or 5567200 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 126263710440 in words is "one hundred twenty-six billion, two hundred sixty-three million, seven hundred ten thousand, four hundred forty".