306545340644 has 6 divisors (see below), whose sum is σ = 536454346134. Its totient is φ = 153272670320.

The previous prime is 306545340641. The next prime is 306545340649. The reversal of 306545340644 is 446043545603.

It can be written as a sum of positive squares in only one way, i.e., 157037838400 + 149507502244 = 396280^2 + 386662^2 .

It is a junction number, because it is equal to n+sod(n) for n = 306545340595 and 306545340604.

It is not an unprimeable number, because it can be changed into a prime (306545340641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38318167577 + ... + 38318167584.

It is an arithmetic number, because the mean of its divisors is an integer number (89409057689).

Almost surely, 2^306545340644 is an apocalyptic number.

It is an amenable number.

306545340644 is a deficient number, since it is larger than the sum of its proper divisors (229909005490).

306545340644 is a wasteful number, since it uses less digits than its factorization.

306545340644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76636335165 (or 76636335163 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 44.

The spelling of 306545340644 in words is "three hundred six billion, five hundred forty-five million, three hundred forty thousand, six hundred forty-four".