423542010851778 has 64 divisors (see below), whose sum is σ = 1043968133763072. Its totient is φ = 111553046337600.

The previous prime is 423542010851777. The next prime is 423542010851963. The reversal of 423542010851778 is 877158010245324.

It is a super-3 number, since 3×423542010851778³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (423542010851777) 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, 521611798 + ... + 522423153.

It is an arithmetic number, because the mean of its divisors is an integer number (16312002090048).

Almost surely, 2^{423542010851778} is an apocalyptic number.

423542010851778 is an abundant number, since it is smaller than the sum of its proper divisors (620426122911294).

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

423542010851778 is a wasteful number, since it uses less digits than its factorization.

423542010851778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044035719.

The product of its (nonzero) digits is 15052800, while the sum is 57.

The spelling of 423542010851778 in words is "four hundred twenty-three trillion, five hundred forty-two billion, ten million, eight hundred fifty-one thousand, seven hundred seventy-eight".