9520020869 has 8 divisors (see below), whose sum is σ = 9657160920. Its totient is φ = 9383786496.

The previous prime is 9520020841. The next prime is 9520020883. The reversal of 9520020869 is 9680200259.

It can be written as a sum of positive squares in 4 ways, for example, as 2415722500 + 7104298369 = 49150^2 + 84287^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 9520020869 - 2¹² = 9520016773 is a prime.

It is a super-2 number, since 2×9520020869² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9520025869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205232 + ... + 247305.

It is an arithmetic number, because the mean of its divisors is an integer number (1207145115).

Almost surely, 2^9520020869 is an apocalyptic number.

It is an amenable number.

9520020869 is a deficient number, since it is larger than the sum of its proper divisors (137140051).

9520020869 is a wasteful number, since it uses less digits than its factorization.

9520020869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452839.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 9520020869 is about 97570.5942843437. The cubic root of 9520020869 is about 2119.3985529073.

The spelling of 9520020869 in words is "nine billion, five hundred twenty million, twenty thousand, eight hundred sixty-nine".