312239894460 has 144 divisors (see below), whose sum is σ = 977236162560. Its totient is φ = 74379651840.

The previous prime is 312239894431. The next prime is 312239894467. The reversal of 312239894460 is 64498932213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312239894467) 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, 182320 + ... + 810999.

It is an arithmetic number, because the mean of its divisors is an integer number (6786362240).

Almost surely, 2^312239894460 is an apocalyptic number.

312239894460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312239894460 is an abundant number, since it is smaller than the sum of its proper divisors (664996268100).

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

312239894460 is a wasteful number, since it uses less digits than its factorization.

312239894460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993388 (or 993373 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 51.

The spelling of 312239894460 in words is "three hundred twelve billion, two hundred thirty-nine million, eight hundred ninety-four thousand, four hundred sixty".