42628453442 has 8 divisors (see below), whose sum is σ = 63946908300. Its totient is φ = 21312817344.

The previous prime is 42628453421. The next prime is 42628453451. The reversal of 42628453442 is 24435482624.

It can be written as a sum of positive squares in 2 ways, for example, as 39080940721 + 3547512721 = 197689^2 + 59561^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 42628453393 and 42628453402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666467 + ... + 727622.

Almost surely, 2^42628453442 is an apocalyptic number.

42628453442 is a deficient number, since it is larger than the sum of its proper divisors (21318454858).

42628453442 is a wasteful number, since it uses less digits than its factorization.

42628453442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409380.

The product of its digits is 1474560, while the sum is 44.

The spelling of 42628453442 in words is "forty-two billion, six hundred twenty-eight million, four hundred fifty-three thousand, four hundred forty-two".