445194136331 has 12 divisors (see below), whose sum is σ = 540395368272. Its totient is φ = 365003887248.

The previous prime is 445194136319. The next prime is 445194136351. The reversal of 445194136331 is 133631491544.

It is not a de Polignac number, because 445194136331 - 2¹⁰ = 445194135307 is a prime.

It is a super-2 number, since 2×445194136331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445194136351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197511800 + ... + 197514053.

It is an arithmetic number, because the mean of its divisors is an integer number (45032947356).

Almost surely, 2^445194136331 is an apocalyptic number.

445194136331 is a deficient number, since it is larger than the sum of its proper divisors (95201231941).

445194136331 is a wasteful number, since it uses less digits than its factorization.

445194136331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395025890 (or 395025883 counting only the distinct ones).

The product of its digits is 466560, while the sum is 44.

The spelling of 445194136331 in words is "four hundred forty-five billion, one hundred ninety-four million, one hundred thirty-six thousand, three hundred thirty-one".