20864046802 has 8 divisors (see below), whose sum is σ = 31618710396. Its totient is φ = 10324476672.

The previous prime is 20864046793. The next prime is 20864046893.

20864046802 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 20408693881 + 455352921 = 142859^2 + 21339^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 53773123 + ... + 53773510.

Almost surely, 2^20864046802 is an apocalyptic number.

20864046802 is a deficient number, since it is larger than the sum of its proper divisors (10754663594).

20864046802 is a wasteful number, since it uses less digits than its factorization.

20864046802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107546732.

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 20864046802 in words is "twenty billion, eight hundred sixty-four million, forty-six thousand, eight hundred two".