40047484217641 has 2 divisors, whose sum is σ = 40047484217642. Its totient is φ = 40047484217640.

The previous prime is 40047484217591. The next prime is 40047484217681. The reversal of 40047484217641 is 14671248474004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20429857603600 + 19617626614041 = 4519940^2 + 4429179^2 .

It is a cyclic number.

It is not a de Polignac number, because 40047484217641 - 2¹³ = 40047484209449 is a prime.

It is not a weakly prime, because it can be changed into another prime (40047484217681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20023742108820 + 20023742108821.

It is an arithmetic number, because the mean of its divisors is an integer number (20023742108821).

Almost surely, 2^{40047484217641} is an apocalyptic number.

It is an amenable number.

40047484217641 is a deficient number, since it is larger than the sum of its proper divisors (1).

40047484217641 is an equidigital number, since it uses as much as digits as its factorization.

40047484217641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4816896, while the sum is 52.

The spelling of 40047484217641 in words is "forty trillion, forty-seven billion, four hundred eighty-four million, two hundred seventeen thousand, six hundred forty-one".