8545434873078 has 64 divisors (see below), whose sum is σ = 18238025744640. Its totient is φ = 2661417741312.

The previous prime is 8545434873077. The next prime is 8545434873113. The reversal of 8545434873078 is 8703784345458.

It is a super-2 number, since 2×8545434873078² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8545434873071) 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, 195853101 + ... + 195896727.

It is an arithmetic number, because the mean of its divisors is an integer number (284969152260).

Almost surely, 2^{8545434873078} is an apocalyptic number.

8545434873078 is an abundant number, since it is smaller than the sum of its proper divisors (9692590871562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8545434873078 is a wasteful number, since it uses less digits than its factorization.

8545434873078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67261.

The product of its (nonzero) digits is 361267200, while the sum is 66.

The spelling of 8545434873078 in words is "eight trillion, five hundred forty-five billion, four hundred thirty-four million, eight hundred seventy-three thousand, seventy-eight".