873086477781 has 16 divisors (see below), whose sum is σ = 1362866698368. Its totient is φ = 486738105600.

The previous prime is 873086477773. The next prime is 873086477803. The reversal of 873086477781 is 187774680378.

It is not a de Polignac number, because 873086477781 - 2³ = 873086477773 is a prime.

It is a super-2 number, since 2×873086477781² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873086477761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 507018000 + ... + 507019721.

It is an arithmetic number, because the mean of its divisors is an integer number (85179168648).

Almost surely, 2^873086477781 is an apocalyptic number.

It is an amenable number.

873086477781 is a deficient number, since it is larger than the sum of its proper divisors (489780220587).

873086477781 is a wasteful number, since it uses less digits than its factorization.

873086477781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014037772.

The product of its (nonzero) digits is 88510464, while the sum is 66.

The spelling of 873086477781 in words is "eight hundred seventy-three billion, eighty-six million, four hundred seventy-seven thousand, seven hundred eighty-one".