312900954228 has 144 divisors (see below), whose sum is σ = 847525363776. Its totient is φ = 96993469440.

The previous prime is 312900954151. The next prime is 312900954229. The reversal of 312900954228 is 822459009213.

312900954228 is a `hidden beast` number, since 3 + 12 + 90 + 0 + 9 + 542 + 2 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312900954229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17248723 + ... + 17266853.

It is an arithmetic number, because the mean of its divisors is an integer number (5885592804).

Almost surely, 2^312900954228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312900954228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423762681888).

312900954228 is an abundant number, since it is smaller than the sum of its proper divisors (534624409548).

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

312900954228 is a wasteful number, since it uses less digits than its factorization.

312900954228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18494 (or 18489 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 312900954228 in words is "three hundred twelve billion, nine hundred million, nine hundred fifty-four thousand, two hundred twenty-eight".