306494779136 has 144 divisors (see below), whose sum is σ = 765322557888. Its totient is φ = 119262412800.

The previous prime is 306494779091. The next prime is 306494779259. The reversal of 306494779136 is 631977494603.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1313216 + ... + 1528896.

Almost surely, 2^306494779136 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 306494779136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382661278944).

306494779136 is an abundant number, since it is smaller than the sum of its proper divisors (458827778752).

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

306494779136 is a wasteful number, since it uses less digits than its factorization.

306494779136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215778 (or 215764 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 59.

The spelling of 306494779136 in words is "three hundred six billion, four hundred ninety-four million, seven hundred seventy-nine thousand, one hundred thirty-six".