40726240152641 has 2 divisors, whose sum is σ = 40726240152642. Its totient is φ = 40726240152640.

The previous prime is 40726240152551. The next prime is 40726240152643. The reversal of 40726240152641 is 14625104262704.

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., 27780067662400 + 12946172490241 = 5270680^2 + 3598079^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40726240152641 is a prime.

Together with 40726240152643, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 40726240152592 and 40726240152601.

It is not a weakly prime, because it can be changed into another prime (40726240152643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20363120076320 + 20363120076321.

It is an arithmetic number, because the mean of its divisors is an integer number (20363120076321).

Almost surely, 2^{40726240152641} is an apocalyptic number.

It is an amenable number.

40726240152641 is a deficient number, since it is larger than the sum of its proper divisors (1).

40726240152641 is an equidigital number, since it uses as much as digits as its factorization.

40726240152641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 40726240152641 in words is "forty trillion, seven hundred twenty-six billion, two hundred forty million, one hundred fifty-two thousand, six hundred forty-one".