801871771852 has 24 divisors (see below), whose sum is σ = 1496510603280. Its totient is φ = 374636659200.

The previous prime is 801871771823. The next prime is 801871771901. The reversal of 801871771852 is 258177178108.

It is a super-3 number, since 3×801871771852³ (a number of 37 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 801871771793 and 801871771802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42408649 + ... + 42427552.

It is an arithmetic number, because the mean of its divisors is an integer number (62354608470).

Almost surely, 2^801871771852 is an apocalyptic number.

It is an amenable number.

801871771852 is a deficient number, since it is larger than the sum of its proper divisors (694638831428).

801871771852 is a wasteful number, since it uses less digits than its factorization.

801871771852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84836361 (or 84836359 counting only the distinct ones).

The product of its (nonzero) digits is 1756160, while the sum is 55.

The spelling of 801871771852 in words is "eight hundred one billion, eight hundred seventy-one million, seven hundred seventy-one thousand, eight hundred fifty-two".