42645485788 has 48 divisors (see below), whose sum is σ = 82325617920. Its totient is φ = 19239099264.

The previous prime is 42645485741. The next prime is 42645485803. The reversal of 42645485788 is 88758454624.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 354931 + ... + 459637.

It is an arithmetic number, because the mean of its divisors is an integer number (1715117040).

Almost surely, 2^42645485788 is an apocalyptic number.

It is an amenable number.

42645485788 is a deficient number, since it is larger than the sum of its proper divisors (39680132132).

42645485788 is a wasteful number, since it uses less digits than its factorization.

42645485788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104986 (or 104984 counting only the distinct ones).

The product of its digits is 68812800, while the sum is 61.

The spelling of 42645485788 in words is "forty-two billion, six hundred forty-five million, four hundred eighty-five thousand, seven hundred eighty-eight".