404445046506451 has 2 divisors, whose sum is σ = 404445046506452. Its totient is φ = 404445046506450.

The previous prime is 404445046506313. The next prime is 404445046506503. The reversal of 404445046506451 is 154605640544404.

It is an a-pointer prime, because the next prime (404445046506503) can be obtained adding 404445046506451 to its sum of digits (52).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404445046506451 is a prime.

It is not a weakly prime, because it can be changed into another prime (404445046606451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202222523253225 + 202222523253226.

It is an arithmetic number, because the mean of its divisors is an integer number (202222523253226).

Almost surely, 2^{404445046506451} is an apocalyptic number.

404445046506451 is a deficient number, since it is larger than the sum of its proper divisors (1).

404445046506451 is an equidigital number, since it uses as much as digits as its factorization.

404445046506451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432000, while the sum is 52.

The spelling of 404445046506451 in words is "four hundred four trillion, four hundred forty-five billion, forty-six million, five hundred six thousand, four hundred fifty-one".