309347261242 has 8 divisors (see below), whose sum is σ = 464058018432. Its totient is φ = 154661255100.

The previous prime is 309347261233. The next prime is 309347261261. The reversal of 309347261242 is 242162743903.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6156484 + ... + 6206527.

It is an arithmetic number, because the mean of its divisors is an integer number (58007252304).

Almost surely, 2^309347261242 is an apocalyptic number.

309347261242 is a deficient number, since it is larger than the sum of its proper divisors (154710757190).

309347261242 is a wasteful number, since it uses less digits than its factorization.

309347261242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12375524.

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 309347261242 in words is "three hundred nine billion, three hundred forty-seven million, two hundred sixty-one thousand, two hundred forty-two".