20840675762 has 8 divisors (see below), whose sum is σ = 31272041196. Its totient is φ = 10416662032.

The previous prime is 20840675761. The next prime is 20840675771. The reversal of 20840675762 is 26757604802.

It can be written as a sum of positive squares in 2 ways, for example, as 14016428881 + 6824246881 = 118391^2 + 82609^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20840675761) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1830833 + ... + 1842180.

Almost surely, 2^20840675762 is an apocalyptic number.

20840675762 is a deficient number, since it is larger than the sum of its proper divisors (10431365434).

20840675762 is a wasteful number, since it uses less digits than its factorization.

20840675762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675852.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 20840675762 in words is "twenty billion, eight hundred forty million, six hundred seventy-five thousand, seven hundred sixty-two".