78340543674085 has 32 divisors (see below), whose sum is σ = 117368604979200. Its totient is φ = 48767741770560.

The previous prime is 78340543674047. The next prime is 78340543674089. The reversal of 78340543674085 is 58047634504387.

It is not a de Polignac number, because 78340543674085 - 2⁹ = 78340543673573 is a prime.

It is a super-2 number, since 2×78340543674085² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78340543674089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141226615 + ... + 141780244.

It is an arithmetic number, because the mean of its divisors is an integer number (3667768905600).

Almost surely, 2^{78340543674085} is an apocalyptic number.

It is an amenable number.

78340543674085 is a deficient number, since it is larger than the sum of its proper divisors (39028061305115).

78340543674085 is a wasteful number, since it uses less digits than its factorization.

78340543674085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283007601.

The product of its (nonzero) digits is 270950400, while the sum is 64.

The spelling of 78340543674085 in words is "seventy-eight trillion, three hundred forty billion, five hundred forty-three million, six hundred seventy-four thousand, eighty-five".