78468417184845 has 32 divisors (see below), whose sum is σ = 126320163240960. Its totient is φ = 41593689643520.

The previous prime is 78468417184793. The next prime is 78468417184853. The reversal of 78468417184845 is 54848171486487.

It is not a de Polignac number, because 78468417184845 - 2¹⁴ = 78468417168461 is a prime.

It is a super-2 number, since 2×78468417184845² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22288989 + ... + 25568258.

It is an arithmetic number, because the mean of its divisors is an integer number (3947505101280).

Almost surely, 2^{78468417184845} is an apocalyptic number.

It is an amenable number.

78468417184845 is a deficient number, since it is larger than the sum of its proper divisors (47851746056115).

78468417184845 is a wasteful number, since it uses less digits than its factorization.

78468417184845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47857925.

The product of its digits is 1541406720, while the sum is 75.

The spelling of 78468417184845 in words is "seventy-eight trillion, four hundred sixty-eight billion, four hundred seventeen million, one hundred eighty-four thousand, eight hundred forty-five".