445451323836 has 24 divisors (see below), whose sum is σ = 1039614435664. Its totient is φ = 148451201280.

The previous prime is 445451323831. The next prime is 445451323843. The reversal of 445451323836 is 638323154544.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445451323831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4014655 + ... + 4124118.

Almost surely, 2^445451323836 is an apocalyptic number.

It is an amenable number.

445451323836 is an abundant number, since it is smaller than the sum of its proper divisors (594163111828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445451323836 is a wasteful number, since it uses less digits than its factorization.

445451323836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8143341 (or 8143339 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 48.

The spelling of 445451323836 in words is "four hundred forty-five billion, four hundred fifty-one million, three hundred twenty-three thousand, eight hundred thirty-six".