4542423165078 has 16 divisors (see below), whose sum is σ = 9099813135360. Its totient is φ = 1511646587496.

The previous prime is 4542423165053. The next prime is 4542423165079. The reversal of 4542423165078 is 8705613242454.

It is a self number, because there is not a number n which added to its sum of digits gives 4542423165078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4542423165079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623612938 + ... + 623620221.

It is an arithmetic number, because the mean of its divisors is an integer number (568738320960).

Almost surely, 2^{4542423165078} is an apocalyptic number.

4542423165078 is an abundant number, since it is smaller than the sum of its proper divisors (4557389970282).

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

4542423165078 is a wasteful number, since it uses less digits than its factorization.

4542423165078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247233771.

The product of its (nonzero) digits is 6451200, while the sum is 51.

The spelling of 4542423165078 in words is "four trillion, five hundred forty-two billion, four hundred twenty-three million, one hundred sixty-five thousand, seventy-eight".