20840675763 has 4 divisors (see below), whose sum is σ = 27787567688. Its totient is φ = 13893783840.

The previous prime is 20840675761. The next prime is 20840675771. The reversal of 20840675763 is 36757604802.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20840675763 - 2¹ = 20840675761 is a prime.

It is a Duffinian number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3473445958 + ... + 3473445963.

It is an arithmetic number, because the mean of its divisors is an integer number (6946891922).

Almost surely, 2^20840675763 is an apocalyptic number.

20840675763 is a deficient number, since it is larger than the sum of its proper divisors (6946891925).

20840675763 is an equidigital number, since it uses as much as digits as its factorization.

20840675763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6946891924.

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 20840675763 in words is "twenty billion, eight hundred forty million, six hundred seventy-five thousand, seven hundred sixty-three".