445064550631 has 4 divisors (see below), whose sum is σ = 450698279200. Its totient is φ = 439430822064.

The previous prime is 445064550607. The next prime is 445064550647. The reversal of 445064550631 is 136055460544.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 445064550631 - 2²⁵ = 445030996199 is a prime.

It is a super-2 number, since 2×445064550631² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445064550661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2816864166 + ... + 2816864323.

It is an arithmetic number, because the mean of its divisors is an integer number (112674569800).

Almost surely, 2^445064550631 is an apocalyptic number.

445064550631 is a deficient number, since it is larger than the sum of its proper divisors (5633728569).

445064550631 is an equidigital number, since it uses as much as digits as its factorization.

445064550631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5633728568.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 445064550631 in words is "four hundred forty-five billion, sixty-four million, five hundred fifty thousand, six hundred thirty-one".