30912828357 has 8 divisors (see below), whose sum is σ = 41339411776. Its totient is φ = 20547398592.

The previous prime is 30912828329. The next prime is 30912828361. The reversal of 30912828357 is 75382821903.

It is a happy number.

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

It is not a de Polignac number, because 30912828357 - 2⁶ = 30912828293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30912824357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15287233 + ... + 15289254.

It is an arithmetic number, because the mean of its divisors is an integer number (5167426472).

Almost surely, 2^30912828357 is an apocalyptic number.

It is an amenable number.

30912828357 is a deficient number, since it is larger than the sum of its proper divisors (10426583419).

30912828357 is a wasteful number, since it uses less digits than its factorization.

30912828357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30576827.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 30912828357 in words is "thirty billion, nine hundred twelve million, eight hundred twenty-eight thousand, three hundred fifty-seven".