423165134297078 has 8 divisors (see below), whose sum is σ = 646724073171168. Its totient is φ = 207590443240024.

The previous prime is 423165134297077. The next prime is 423165134297099. The reversal of 423165134297078 is 870792431561324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 423165134297078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423165134297077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1996061954126 + ... + 1996061954337.

It is an arithmetic number, because the mean of its divisors is an integer number (80840509146396).

It is a 1-persistent number, because it is pandigital, but 2⋅423165134297078 = 846330268594156 is not.

Almost surely, 2^{423165134297078} is an apocalyptic number.

423165134297078 is a deficient number, since it is larger than the sum of its proper divisors (223558938874090).

423165134297078 is a wasteful number, since it uses less digits than its factorization.

423165134297078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3992123908518.

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 423165134297078 in words is "four hundred twenty-three trillion, one hundred sixty-five billion, one hundred thirty-four million, two hundred ninety-seven thousand, seventy-eight".