306506740651 has 8 divisors (see below), whose sum is σ = 310209802560. Its totient is φ = 302803921992.

The previous prime is 306506740649. The next prime is 306506740669. The reversal of 306506740651 is 156047605603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 306506740651 - 2¹ = 306506740649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 306506740598 and 306506740607.

It is not an unprimeable number, because it can be changed into a prime (306506740451) 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 7 ways as a sum of consecutive naturals, for example, 4970856 + ... + 5032138.

It is an arithmetic number, because the mean of its divisors is an integer number (38776225320).

Almost surely, 2^306506740651 is an apocalyptic number.

306506740651 is a deficient number, since it is larger than the sum of its proper divisors (3703061909).

306506740651 is an equidigital number, since it uses as much as digits as its factorization.

306506740651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121625.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 306506740651 in words is "three hundred six billion, five hundred six million, seven hundred forty thousand, six hundred fifty-one".