78465740882617 has 12 divisors (see below), whose sum is σ = 86394396575088. Its totient is φ = 71210971218200.

The previous prime is 78465740882609. The next prime is 78465740882671. The reversal of 78465740882617 is 71628804756487.

It is not a de Polignac number, because 78465740882617 - 2³ = 78465740882609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78465740882617.

It is not an unprimeable number, because it can be changed into a prime (78465740882017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 552294559 + ... + 552436612.

It is an arithmetic number, because the mean of its divisors is an integer number (7199533047924).

Almost surely, 2^{78465740882617} is an apocalyptic number.

It is an amenable number.

78465740882617 is a deficient number, since it is larger than the sum of its proper divisors (7928655692471).

78465740882617 is a wasteful number, since it uses less digits than its factorization.

78465740882617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104731780 (or 1104731769 counting only the distinct ones).

The product of its (nonzero) digits is 1011548160, while the sum is 73.

The spelling of 78465740882617 in words is "seventy-eight trillion, four hundred sixty-five billion, seven hundred forty million, eight hundred eighty-two thousand, six hundred seventeen".