42438854887628 has 24 divisors (see below), whose sum is σ = 80762017970592. Its totient is φ = 19431462968064.

The previous prime is 42438854887621. The next prime is 42438854887643. The reversal of 42438854887628 is 82678845883424.

It is not an unprimeable number, because it can be changed into a prime (42438854887621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8433792176 + ... + 8433797207.

It is an arithmetic number, because the mean of its divisors is an integer number (3365084082108).

Almost surely, 2^{42438854887628} is an apocalyptic number.

It is an amenable number.

42438854887628 is a deficient number, since it is larger than the sum of its proper divisors (38323163082964).

42438854887628 is a wasteful number, since it uses less digits than its factorization.

42438854887628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16867589441 (or 16867589439 counting only the distinct ones).

The product of its digits is 5284823040, while the sum is 77.

The spelling of 42438854887628 in words is "forty-two trillion, four hundred thirty-eight billion, eight hundred fifty-four million, eight hundred eighty-seven thousand, six hundred twenty-eight".