312154244646 has 16 divisors (see below), whose sum is σ = 624318859008. Its totient is φ = 104049686600.

The previous prime is 312154244641. The next prime is 312154244657. The reversal of 312154244646 is 646442451213.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 312154244598 and 312154244607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312154244641) 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, 8850 + ... + 790181.

It is an arithmetic number, because the mean of its divisors is an integer number (39019928688).

Almost surely, 2^312154244646 is an apocalyptic number.

312154244646 is an abundant number, since it is smaller than the sum of its proper divisors (312164614362).

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

312154244646 is a wasteful number, since it uses less digits than its factorization.

312154244646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864147.

The product of its digits is 552960, while the sum is 42.

Adding to 312154244646 its reverse (646442451213), we get a palindrome (958596695859).

The spelling of 312154244646 in words is "three hundred twelve billion, one hundred fifty-four million, two hundred forty-four thousand, six hundred forty-six".