446497987356 has 108 divisors (see below), whose sum is σ = 1186453293480. Its totient is φ = 141565279680.

The previous prime is 446497987343. The next prime is 446497987361. The reversal of 446497987356 is 653789794644.

It is a happy number.

446497987356 is a `hidden beast` number, since 4 + 4 + 6 + 497 + 9 + 87 + 3 + 56 = 666.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 3343386 + ... + 3474366.

Almost surely, 2^446497987356 is an apocalyptic number.

446497987356 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 446497987356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593226646740).

446497987356 is an abundant number, since it is smaller than the sum of its proper divisors (739955306124).

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

446497987356 is a wasteful number, since it uses less digits than its factorization.

446497987356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131216 (or 131188 counting only the distinct ones).

The product of its digits is 1097349120, while the sum is 72.

The spelling of 446497987356 in words is "four hundred forty-six billion, four hundred ninety-seven million, nine hundred eighty-seven thousand, three hundred fifty-six".