20794849802 has 16 divisors (see below), whose sum is σ = 31548968424. Its totient is φ = 10278840000.

The previous prime is 20794849753. The next prime is 20794849807. The reversal of 20794849802 is 20894849702.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20215436761 + 579413041 = 142181^2 + 24071^2 .

It is not an unprimeable number, because it can be changed into a prime (20794849807) 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 7 ways as a sum of consecutive naturals, for example, 55652 + ... + 211392.

Almost surely, 2^20794849802 is an apocalyptic number.

20794849802 is a deficient number, since it is larger than the sum of its proper divisors (10754118622).

20794849802 is a wasteful number, since it uses less digits than its factorization.

20794849802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156505.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 20794849802 in words is "twenty billion, seven hundred ninety-four million, eight hundred forty-nine thousand, eight hundred two".