40741761643 has 16 divisors (see below), whose sum is σ = 46385644032. Its totient is φ = 35421760000.

The previous prime is 40741761607. The next prime is 40741761691. The reversal of 40741761643 is 34616714704.

It is not a de Polignac number, because 40741761643 - 2¹⁷ = 40741630571 is a prime.

It is a super-2 number, since 2×40741761643² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40741761643.

It is not an unprimeable number, because it can be changed into a prime (40741761743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2339418 + ... + 2356768.

It is an arithmetic number, because the mean of its divisors is an integer number (2899102752).

Almost surely, 2^40741761643 is an apocalyptic number.

40741761643 is a deficient number, since it is larger than the sum of its proper divisors (5643882389).

40741761643 is a wasteful number, since it uses less digits than its factorization.

40741761643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26666.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 40741761643 in words is "forty billion, seven hundred forty-one million, seven hundred sixty-one thousand, six hundred forty-three".