78271414340667 has 16 divisors (see below), whose sum is σ = 109855043088000. Its totient is φ = 49434385567104.

The previous prime is 78271414340663. The next prime is 78271414340711. The reversal of 78271414340667 is 76604341417287.

It is not a de Polignac number, because 78271414340667 - 2² = 78271414340663 is a prime.

It is a super-2 number, since 2×78271414340667² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78271414340667.

It is not an unprimeable number, because it can be changed into a prime (78271414340663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12940584 + ... + 18000042.

It is an arithmetic number, because the mean of its divisors is an integer number (6865940193000).

Almost surely, 2^{78271414340667} is an apocalyptic number.

78271414340667 is a deficient number, since it is larger than the sum of its proper divisors (31583628747333).

78271414340667 is a wasteful number, since it uses less digits than its factorization.

78271414340667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330890.

The product of its (nonzero) digits is 37933056, while the sum is 60.

The spelling of 78271414340667 in words is "seventy-eight trillion, two hundred seventy-one billion, four hundred fourteen million, three hundred forty thousand, six hundred sixty-seven".