1871428872886 has 8 divisors (see below), whose sum is σ = 2807659629360. Its totient is φ = 935542329768.

The previous prime is 1871428872847. The next prime is 1871428872919. The reversal of 1871428872886 is 6882788241781.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86039746 + ... + 86061493.

It is an arithmetic number, because the mean of its divisors is an integer number (350957453670).

Almost surely, 2^{1871428872886} is an apocalyptic number.

1871428872886 is a deficient number, since it is larger than the sum of its proper divisors (936230756474).

1871428872886 is a wasteful number, since it uses less digits than its factorization.

1871428872886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172106678.

The product of its digits is 154140672, while the sum is 70.

The spelling of 1871428872886 in words is "one trillion, eight hundred seventy-one billion, four hundred twenty-eight million, eight hundred seventy-two thousand, eight hundred eighty-six".