312791301228 has 48 divisors (see below), whose sum is σ = 846559556864. Its totient is φ = 88035076800.

The previous prime is 312791301217. The next prime is 312791301241. The reversal of 312791301228 is 822103197213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27783223 + ... + 27794478.

Almost surely, 2^312791301228 is an apocalyptic number.

It is an amenable number.

312791301228 is an abundant number, since it is smaller than the sum of its proper divisors (533768255636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312791301228 is a wasteful number, since it uses less digits than its factorization.

312791301228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55577782 (or 55577780 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 312791301228 in words is "three hundred twelve billion, seven hundred ninety-one million, three hundred one thousand, two hundred twenty-eight".