42910978866 has 16 divisors (see below), whose sum is σ = 98082237504. Its totient is φ = 12260279664.

The previous prime is 42910978807. The next prime is 42910978867. The reversal of 42910978866 is 66887901924.

It is not an unprimeable number, because it can be changed into a prime (42910978867) 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, 510844945 + ... + 510845028.

It is an arithmetic number, because the mean of its divisors is an integer number (6130139844).

Almost surely, 2^42910978866 is an apocalyptic number.

42910978866 is an abundant number, since it is smaller than the sum of its proper divisors (55171258638).

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

42910978866 is a wasteful number, since it uses less digits than its factorization.

42910978866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021689985.

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 42910978866 in words is "forty-two billion, nine hundred ten million, nine hundred seventy-eight thousand, eight hundred sixty-six".