445845541815 has 16 divisors (see below), whose sum is σ = 792614296800. Its totient is φ = 237784288896.

The previous prime is 445845541793. The next prime is 445845541819. The reversal of 445845541815 is 518145548544.

445845541815 is a `hidden beast` number, since 4 + 4 + 5 + 8 + 4 + 554 + 1 + 81 + 5 = 666.

It is not a de Polignac number, because 445845541815 - 2¹¹ = 445845539767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445845541819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1651279650 + ... + 1651279919.

It is an arithmetic number, because the mean of its divisors is an integer number (49538393550).

Almost surely, 2^445845541815 is an apocalyptic number.

445845541815 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

445845541815 is a deficient number, since it is larger than the sum of its proper divisors (346768754985).

445845541815 is a wasteful number, since it uses less digits than its factorization.

445845541815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3302559583 (or 3302559577 counting only the distinct ones).

The product of its digits is 10240000, while the sum is 54.

The spelling of 445845541815 in words is "four hundred forty-five billion, eight hundred forty-five million, five hundred forty-one thousand, eight hundred fifteen".