304972557997 has 8 divisors (see below), whose sum is σ = 321110652800. Its totient is φ = 288843153984.

The previous prime is 304972557973. The next prime is 304972558001. The reversal of 304972557997 is 799755279403.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304972557997 is a prime.

It is a super-2 number, since 2×304972557997² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304972557907) 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, 2100597 + ... + 2241082.

It is an arithmetic number, because the mean of its divisors is an integer number (40138831600).

Almost surely, 2^304972557997 is an apocalyptic number.

It is an amenable number.

304972557997 is a deficient number, since it is larger than the sum of its proper divisors (16138094803).

304972557997 is a wasteful number, since it uses less digits than its factorization.

304972557997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4345395.

The product of its (nonzero) digits is 150028200, while the sum is 67.

The spelling of 304972557997 in words is "three hundred four billion, nine hundred seventy-two million, five hundred fifty-seven thousand, nine hundred ninety-seven".