886664620442 has 8 divisors (see below), whose sum is σ = 1330004637876. Its totient is φ = 443329741152.

The previous prime is 886664620423. The next prime is 886664620447. The reversal of 886664620442 is 244026466688.

886664620442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 789682826881 + 96981793561 = 888641^2 + 311419^2 .

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

It is not an unprimeable number, because it can be changed into a prime (886664620447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819443 + ... + 1563590.

Almost surely, 2^886664620442 is an apocalyptic number.

886664620442 is a deficient number, since it is larger than the sum of its proper divisors (443340017434).

886664620442 is a wasteful number, since it uses less digits than its factorization.

886664620442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569072.

The product of its (nonzero) digits is 21233664, while the sum is 56.

The spelling of 886664620442 in words is "eight hundred eighty-six billion, six hundred sixty-four million, six hundred twenty thousand, four hundred forty-two".