40881702357481 has 2 divisors, whose sum is σ = 40881702357482. Its totient is φ = 40881702357480.

The previous prime is 40881702357403. The next prime is 40881702357541. The reversal of 40881702357481 is 18475320718804.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38196417105625 + 2685285251856 = 6180325^2 + 1638684^2 .

It is a cyclic number.

It is not a de Polignac number, because 40881702357481 - 2¹¹ = 40881702355433 is a prime.

It is a super-2 number, since 2×40881702357481² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40881702337481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20440851178740 + 20440851178741.

It is an arithmetic number, because the mean of its divisors is an integer number (20440851178741).

Almost surely, 2^{40881702357481} is an apocalyptic number.

It is an amenable number.

40881702357481 is a deficient number, since it is larger than the sum of its proper divisors (1).

40881702357481 is an equidigital number, since it uses as much as digits as its factorization.

40881702357481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12042240, while the sum is 58.

The spelling of 40881702357481 in words is "forty trillion, eight hundred eighty-one billion, seven hundred two million, three hundred fifty-seven thousand, four hundred eighty-one".