40126541637639 has 8 divisors (see below), whose sum is σ = 53513316755712. Its totient is φ = 26745397139000.

The previous prime is 40126541637631. The next prime is 40126541637643. The reversal of 40126541637639 is 93673614562104.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40126541637639 - 2³ = 40126541637631 is a prime.

It is a super-2 number, since 2×40126541637639² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40126541637631) 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 7 ways as a sum of consecutive naturals, for example, 1407638229 + ... + 1407666734.

It is an arithmetic number, because the mean of its divisors is an integer number (6689164594464).

Almost surely, 2^{40126541637639} is an apocalyptic number.

40126541637639 is a deficient number, since it is larger than the sum of its proper divisors (13386775118073).

40126541637639 is a wasteful number, since it uses less digits than its factorization.

40126541637639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815309717.

The product of its (nonzero) digits is 19595520, while the sum is 57.

The spelling of 40126541637639 in words is "forty trillion, one hundred twenty-six billion, five hundred forty-one million, six hundred thirty-seven thousand, six hundred thirty-nine".