306689671296 has 96 divisors (see below), whose sum is σ = 883076021100. Its totient is φ = 102166812672.

The previous prime is 306689671207. The next prime is 306689671339. The reversal of 306689671296 is 692176986603.

It can be written as a sum of positive squares in 2 ways, for example, as 304995525696 + 1694145600 = 552264^2 + 41160^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1804510 + ... + 1967138.

Almost surely, 2^306689671296 is an apocalyptic number.

306689671296 is a gapful number since it is divisible by the number (36) 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 306689671296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441538010550).

306689671296 is an abundant number, since it is smaller than the sum of its proper divisors (576386349804).

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

306689671296 is a wasteful number, since it uses less digits than its factorization.

306689671296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164286 (or 164271 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 63.

The spelling of 306689671296 in words is "three hundred six billion, six hundred eighty-nine million, six hundred seventy-one thousand, two hundred ninety-six".