920214281285 has 16 divisors (see below), whose sum is σ = 1189343472240. Its totient is φ = 679460866560.

The previous prime is 920214281269. The next prime is 920214281293. The reversal of 920214281285 is 582182412029.

It is a Cunningham number, because it is equal to 959278²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 489795621316 + 430418659969 = 699854^2 + 656063^2 .

It is not a de Polignac number, because 920214281285 - 2⁴ = 920214281269 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 308486 + ... + 1391255.

It is an arithmetic number, because the mean of its divisors is an integer number (74333967015).

Almost surely, 2^920214281285 is an apocalyptic number.

It is an amenable number.

920214281285 is a deficient number, since it is larger than the sum of its proper divisors (269129190955).

920214281285 is a wasteful number, since it uses less digits than its factorization.

920214281285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708088.

The product of its (nonzero) digits is 184320, while the sum is 44.

The spelling of 920214281285 in words is "nine hundred twenty billion, two hundred fourteen million, two hundred eighty-one thousand, two hundred eighty-five".