309057940461 has 8 divisors (see below), whose sum is σ = 412080263680. Its totient is φ = 206037122112.

The previous prime is 309057940459. The next prime is 309057940463. The reversal of 309057940461 is 164049750903.

It is an interprime number because it is at equal distance from previous prime (309057940459) and next prime (309057940463).

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

It is not a de Polignac number, because 309057940461 - 2¹ = 309057940459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 309057940461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309057940463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253620 + ... + 826098.

It is an arithmetic number, because the mean of its divisors is an integer number (51510032960).

Almost surely, 2^309057940461 is an apocalyptic number.

It is an amenable number.

309057940461 is a deficient number, since it is larger than the sum of its proper divisors (103022323219).

309057940461 is a wasteful number, since it uses less digits than its factorization.

309057940461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752435.

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 309057940461 in words is "three hundred nine billion, fifty-seven million, nine hundred forty thousand, four hundred sixty-one".