306639769344 has 144 divisors (see below), whose sum is σ = 820475335680. Its totient is φ = 101667778560.

The previous prime is 306639769327. The next prime is 306639769391. The reversal of 306639769344 is 443967936603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232478317 + ... + 232479635.

Almost surely, 2^306639769344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 306639769344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410237667840).

306639769344 is an abundant number, since it is smaller than the sum of its proper divisors (513835566336).

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

306639769344 is a wasteful number, since it uses less digits than its factorization.

306639769344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726 (or 2712 counting only the distinct ones).

The product of its (nonzero) digits is 52907904, while the sum is 60.

The spelling of 306639769344 in words is "three hundred six billion, six hundred thirty-nine million, seven hundred sixty-nine thousand, three hundred forty-four".