306344564013857 has 16 divisors (see below), whose sum is σ = 312735773093328. Its totient is φ = 299976033576960.

The previous prime is 306344564013811. The next prime is 306344564013869. The reversal of 306344564013857 is 758310465443603.

It can be written as a sum of positive squares in 8 ways, for example, as 21380488201216 + 284964075812641 = 4623904^2 + 16880879^2 .

It is a cyclic number.

It is not a de Polignac number, because 306344564013857 - 2¹⁰ = 306344564012833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 306344564013796 and 306344564013805.

It is not an unprimeable number, because it can be changed into a prime (306344564012857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767248523 + ... + 767647695.

It is an arithmetic number, because the mean of its divisors is an integer number (19545985818333).

Almost surely, 2^{306344564013857} is an apocalyptic number.

It is an amenable number.

306344564013857 is a deficient number, since it is larger than the sum of its proper divisors (6391209079471).

306344564013857 is a wasteful number, since it uses less digits than its factorization.

306344564013857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427540.

The product of its (nonzero) digits is 87091200, while the sum is 59.

The spelling of 306344564013857 in words is "three hundred six trillion, three hundred forty-four billion, five hundred sixty-four million, thirteen thousand, eight hundred fifty-seven".