42678144446 has 24 divisors (see below), whose sum is σ = 74207627760. Its totient is φ = 18032988960.

The previous prime is 42678144407. The next prime is 42678144461. The reversal of 42678144446 is 64444187624.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42678144394 and 42678144403.

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 11 ways as a sum of consecutive naturals, for example, 231791 + ... + 372938.

It is an arithmetic number, because the mean of its divisors is an integer number (3091984490).

Almost surely, 2^42678144446 is an apocalyptic number.

42678144446 is a deficient number, since it is larger than the sum of its proper divisors (31529483314).

42678144446 is an equidigital number, since it uses as much as digits as its factorization.

42678144446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604880 (or 604809 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 50.

The spelling of 42678144446 in words is "forty-two billion, six hundred seventy-eight million, one hundred forty-four thousand, four hundred forty-six".