4023555454544 has 20 divisors (see below), whose sum is σ = 8064453821460. Its totient is φ = 1942406081280.

The previous prime is 4023555454439. The next prime is 4023555454559. The reversal of 4023555454544 is 4454545553204.

It can be written as a sum of positive squares in 2 ways, for example, as 2055954499600 + 1967600954944 = 1433860^2 + 1402712^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4023555454492 and 4023555454501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4335727397 + ... + 4335728324.

It is an arithmetic number, because the mean of its divisors is an integer number (403222691073).

Almost surely, 2^{4023555454544} is an apocalyptic number.

It is an amenable number.

4023555454544 is an abundant number, since it is smaller than the sum of its proper divisors (4040898366916).

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

4023555454544 is a wasteful number, since it uses less digits than its factorization.

4023555454544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8671455758 (or 8671455752 counting only the distinct ones).

The product of its (nonzero) digits is 19200000, while the sum is 50.

The spelling of 4023555454544 in words is "four trillion, twenty-three billion, five hundred fifty-five million, four hundred fifty-four thousand, five hundred forty-four".