445987739862 has 144 divisors (see below), whose sum is σ = 1125354511008. Its totient is φ = 125023046400.

The previous prime is 445987739839. The next prime is 445987739867. The reversal of 445987739862 is 268937789544.

445987739862 is a `hidden beast` number, since 4 + 459 + 87 + 7 + 3 + 98 + 6 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445987739867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 636216112 + ... + 636216812.

It is an arithmetic number, because the mean of its divisors is an integer number (7814961882).

Almost surely, 2^445987739862 is an apocalyptic number.

445987739862 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 445987739862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562677255504).

445987739862 is an abundant number, since it is smaller than the sum of its proper divisors (679366771146).

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

445987739862 is a wasteful number, since it uses less digits than its factorization.

445987739862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315 (or 1049 counting only the distinct ones).

The product of its digits is 731566080, while the sum is 72.

The spelling of 445987739862 in words is "four hundred forty-five billion, nine hundred eighty-seven million, seven hundred thirty-nine thousand, eight hundred sixty-two".