306393939397 has 32 divisors (see below), whose sum is σ = 387399471872. Its totient is φ = 235804276224.

The previous prime is 306393939391. The next prime is 306393939407. The reversal of 306393939397 is 793939393603.

It is a cyclic number.

It is not a de Polignac number, because 306393939397 - 2¹⁵ = 306393906629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306393939391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14679793 + ... + 14700649.

It is an arithmetic number, because the mean of its divisors is an integer number (12106233496).

Almost surely, 2^306393939397 is an apocalyptic number.

306393939397 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

306393939397 is a deficient number, since it is larger than the sum of its proper divisors (81005532475).

306393939397 is a wasteful number, since it uses less digits than its factorization.

306393939397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25277.

The product of its (nonzero) digits is 66961566, while the sum is 64.

The spelling of 306393939397 in words is "three hundred six billion, three hundred ninety-three million, nine hundred thirty-nine thousand, three hundred ninety-seven".