40504462246621 has 2 divisors, whose sum is σ = 40504462246622. Its totient is φ = 40504462246620.

The previous prime is 40504462246609. The next prime is 40504462246639. The reversal of 40504462246621 is 12664226440504.

40504462246621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25579267184025 + 14925195062596 = 5057595^2 + 3863314^2 .

It is a cyclic number.

It is not a de Polignac number, because 40504462246621 - 2¹⁷ = 40504462115549 is a prime.

It is a super-2 number, since 2×40504462246621² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40504462246921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20252231123310 + 20252231123311.

It is an arithmetic number, because the mean of its divisors is an integer number (20252231123311).

Almost surely, 2^{40504462246621} is an apocalyptic number.

It is an amenable number.

40504462246621 is a deficient number, since it is larger than the sum of its proper divisors (1).

40504462246621 is an equidigital number, since it uses as much as digits as its factorization.

40504462246621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2211840, while the sum is 46.

The spelling of 40504462246621 in words is "forty trillion, five hundred four billion, four hundred sixty-two million, two hundred forty-six thousand, six hundred twenty-one".