307705372147 has 4 divisors (see below), whose sum is σ = 307714851360. Its totient is φ = 307695892936.

The previous prime is 307705372127. The next prime is 307705372171. The reversal of 307705372147 is 741273507703.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 307705372147 - 2¹⁵ = 307705339379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 307705372097 and 307705372106.

It is not an unprimeable number, because it can be changed into a prime (307705372127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4690747 + ... + 4755892.

It is an arithmetic number, because the mean of its divisors is an integer number (76928712840).

Almost surely, 2^307705372147 is an apocalyptic number.

307705372147 is a deficient number, since it is larger than the sum of its proper divisors (9479213).

307705372147 is an equidigital number, since it uses as much as digits as its factorization.

307705372147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9479212.

The product of its (nonzero) digits is 864360, while the sum is 46.

The spelling of 307705372147 in words is "three hundred seven billion, seven hundred five million, three hundred seventy-two thousand, one hundred forty-seven".