20843434802 has 4 divisors (see below), whose sum is σ = 31265152206. Its totient is φ = 10421717400.

The previous prime is 20843434793. The next prime is 20843434847.

20843434802 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in only one way, i.e., 18311231761 + 2532203041 = 135319^2 + 50321^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5210858699 + ... + 5210858702.

Almost surely, 2^20843434802 is an apocalyptic number.

20843434802 is a deficient number, since it is larger than the sum of its proper divisors (10421717404).

20843434802 is a wasteful number, since it uses less digits than its factorization.

20843434802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10421717403.

The product of its (nonzero) digits is 147456, while the sum is 38.

The spelling of 20843434802 in words is "twenty billion, eight hundred forty-three million, four hundred thirty-four thousand, eight hundred two".