20710363969 has 4 divisors (see below), whose sum is σ = 20717900500. Its totient is φ = 20702827440.

The previous prime is 20710363939. The next prime is 20710363987. The reversal of 20710363969 is 96936301702.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7643130625 + 13067233344 = 87425^2 + 114312^2 .

It is a cyclic number.

It is not a de Polignac number, because 20710363969 - 2⁵ = 20710363937 is a prime.

It is a super-2 number, since 2×20710363969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20710363909) 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, 3764142 + ... + 3769639.

It is an arithmetic number, because the mean of its divisors is an integer number (5179475125).

Almost surely, 2^20710363969 is an apocalyptic number.

It is an amenable number.

20710363969 is a deficient number, since it is larger than the sum of its proper divisors (7536531).

20710363969 is an equidigital number, since it uses as much as digits as its factorization.

20710363969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7536530.

The product of its (nonzero) digits is 367416, while the sum is 46.

The spelling of 20710363969 in words is "twenty billion, seven hundred ten million, three hundred sixty-three thousand, nine hundred sixty-nine".