445820494504807 has 4 divisors (see below), whose sum is σ = 472045229475696. Its totient is φ = 419595759533920.

The previous prime is 445820494504783. The next prime is 445820494504859. The reversal of 445820494504807 is 708405494028544.

It is a happy number.

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 445820494504807 - 2¹¹ = 445820494502759 is a prime.

It is a super-2 number, since 2×445820494504807² (a number of 30 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 (445820494504897) 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, 13112367485419 + ... + 13112367485452.

It is an arithmetic number, because the mean of its divisors is an integer number (118011307368924).

Almost surely, 2^{445820494504807} is an apocalyptic number.

445820494504807 is a deficient number, since it is larger than the sum of its proper divisors (26224734970889).

445820494504807 is a wasteful number, since it uses less digits than its factorization.

445820494504807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26224734970888.

The product of its (nonzero) digits is 206438400, while the sum is 64.

The spelling of 445820494504807 in words is "four hundred forty-five trillion, eight hundred twenty billion, four hundred ninety-four million, five hundred four thousand, eight hundred seven".