445102412521 has 16 divisors (see below), whose sum is σ = 500366686288. Its totient is φ = 393205881600.

The previous prime is 445102412507. The next prime is 445102412609. The reversal of 445102412521 is 125214201544.

It can be written as a sum of positive squares in 8 ways, for example, as 146680574121 + 298421838400 = 382989^2 + 546280^2 .

It is a cyclic number.

It is not a de Polignac number, because 445102412521 - 2¹⁹ = 445101888233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445102412021) 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, 7555650 + ... + 7614331.

It is an arithmetic number, because the mean of its divisors is an integer number (31272917893).

Almost surely, 2^445102412521 is an apocalyptic number.

It is an amenable number.

445102412521 is a deficient number, since it is larger than the sum of its proper divisors (55264273767).

445102412521 is a wasteful number, since it uses less digits than its factorization.

445102412521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15170092.

The product of its (nonzero) digits is 12800, while the sum is 31.

The spelling of 445102412521 in words is "four hundred forty-five billion, one hundred two million, four hundred twelve thousand, five hundred twenty-one".