40621303412561 has 8 divisors (see below), whose sum is σ = 43010859249504. Its totient is φ = 38231755064640.

The previous prime is 40621303412491. The next prime is 40621303412567. The reversal of 40621303412561 is 16521430312604.

40621303412561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40621303412561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40621303412567) 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 in 7 ways as a sum of consecutive naturals, for example, 12406406 + ... + 15334976.

It is an arithmetic number, because the mean of its divisors is an integer number (5376357406188).

Almost surely, 2^{40621303412561} is an apocalyptic number.

It is an amenable number.

40621303412561 is a deficient number, since it is larger than the sum of its proper divisors (2389555836943).

40621303412561 is a wasteful number, since it uses less digits than its factorization.

40621303412561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3744511.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 40621303412561 in words is "forty trillion, six hundred twenty-one billion, three hundred three million, four hundred twelve thousand, five hundred sixty-one".