40343260440681 has 24 divisors (see below), whose sum is σ = 64442036614176. Its totient is φ = 24115523048640.

The previous prime is 40343260440643. The next prime is 40343260440719. The reversal of 40343260440681 is 18604406234304.

40343260440681 is a `hidden beast` number, since 4 + 0 + 3 + 4 + 32 + 604 + 4 + 0 + 6 + 8 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (40343260440643) and next prime (40343260440719).

It is not a de Polignac number, because 40343260440681 - 2³⁸ = 40068382533737 is a prime.

It is a super-2 number, since 2×40343260440681² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40343260440601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2791141275 + ... + 2791155728.

It is an arithmetic number, because the mean of its divisors is an integer number (2685084858924).

Almost surely, 2^{40343260440681} is an apocalyptic number.

It is an amenable number.

40343260440681 is a deficient number, since it is larger than the sum of its proper divisors (24098776173495).

40343260440681 is a wasteful number, since it uses less digits than its factorization.

40343260440681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5582297093 (or 5582297090 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 45.

Adding to 40343260440681 its reverse (18604406234304), we get a palindrome (58947666674985).

The spelling of 40343260440681 in words is "forty trillion, three hundred forty-three billion, two hundred sixty million, four hundred forty thousand, six hundred eighty-one".