814861290669 has 16 divisors (see below), whose sum is σ = 1143732871680. Its totient is φ = 514618680240.

The previous prime is 814861290647. The next prime is 814861290673. The reversal of 814861290669 is 966092168418.

It is not a de Polignac number, because 814861290669 - 2⁹ = 814861290157 is a prime.

It is a super-2 number, since 2×814861290669² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814861290619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564094 + ... + 1395680.

It is an arithmetic number, because the mean of its divisors is an integer number (71483304480).

Almost surely, 2^814861290669 is an apocalyptic number.

It is an amenable number.

814861290669 is a deficient number, since it is larger than the sum of its proper divisors (328871581011).

814861290669 is a wasteful number, since it uses less digits than its factorization.

814861290669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848800.

The product of its (nonzero) digits is 8957952, while the sum is 60.

The spelling of 814861290669 in words is "eight hundred fourteen billion, eight hundred sixty-one million, two hundred ninety thousand, six hundred sixty-nine".