445284261645 has 64 divisors (see below), whose sum is σ = 726138777600. Its totient is φ = 232981056000.

The previous prime is 445284261641. The next prime is 445284261659. The reversal of 445284261645 is 546162482544.

445284261645 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 445284261645 - 2² = 445284261641 is a prime.

It is a super-3 number, since 3×445284261645³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445284261641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 61747090 + ... + 61754300.

It is an arithmetic number, because the mean of its divisors is an integer number (11345918400).

Almost surely, 2^445284261645 is an apocalyptic number.

It is an amenable number.

445284261645 is a deficient number, since it is larger than the sum of its proper divisors (280854515955).

445284261645 is a wasteful number, since it uses less digits than its factorization.

445284261645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7706.

The product of its digits is 7372800, while the sum is 51.

The spelling of 445284261645 in words is "four hundred forty-five billion, two hundred eighty-four million, two hundred sixty-one thousand, six hundred forty-five".