40126857246 has 128 divisors (see below), whose sum is σ = 104659200000. Its totient is φ = 11390966496.

The previous prime is 40126857233. The next prime is 40126857247. The reversal of 40126857246 is 64275862104.

40126857246 is a `hidden beast` number, since 4 + 0 + 12 + 68 + 572 + 4 + 6 = 666.

It is a super-2 number, since 2×40126857246² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40126857247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2901055 + ... + 2914853.

It is an arithmetic number, because the mean of its divisors is an integer number (817650000).

Almost surely, 2^40126857246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40126857246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52329600000).

40126857246 is an abundant number, since it is smaller than the sum of its proper divisors (64532342754).

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

40126857246 is a wasteful number, since it uses less digits than its factorization.

40126857246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13988 (or 13968 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 40126857246 in words is "forty billion, one hundred twenty-six million, eight hundred fifty-seven thousand, two hundred forty-six".