312040287445465 has 8 divisors (see below), whose sum is σ = 374569800789888. Its totient is φ = 249551259386160.

The previous prime is 312040287445459. The next prime is 312040287445529. The reversal of 312040287445465 is 564544782040213.

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

It is a de Polignac number, because none of the positive numbers 2^k-312040287445465 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10121304321 + ... + 10121335150.

It is an arithmetic number, because the mean of its divisors is an integer number (46821225098736).

Almost surely, 2^{312040287445465} is an apocalyptic number.

It is an amenable number.

312040287445465 is a deficient number, since it is larger than the sum of its proper divisors (62529513344423).

312040287445465 is a wasteful number, since it uses less digits than its factorization.

312040287445465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20242642559.

The product of its (nonzero) digits is 25804800, while the sum is 55.

The spelling of 312040287445465 in words is "three hundred twelve trillion, forty billion, two hundred eighty-seven million, four hundred forty-five thousand, four hundred sixty-five".