10020766869 has 48 divisors (see below), whose sum is σ = 15288015600. Its totient is φ = 6317595648.

The previous prime is 10020766849. The next prime is 10020766901. The reversal of 10020766869 is 96866702001.

It can be written as a sum of positive squares in 8 ways, for example, as 4821635844 + 5199131025 = 69438^2 + 72105^2 .

It is not a de Polignac number, because 10020766869 - 2⁵ = 10020766837 is a prime.

It is a super-2 number, since 2×10020766869² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020766849) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1921137 + ... + 1926345.

It is an arithmetic number, because the mean of its divisors is an integer number (318500325).

Almost surely, 2^10020766869 is an apocalyptic number.

It is an amenable number.

10020766869 is a deficient number, since it is larger than the sum of its proper divisors (5267248731).

10020766869 is a wasteful number, since it uses less digits than its factorization.

10020766869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5414 (or 5411 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 10020766869 in words is "ten billion, twenty million, seven hundred sixty-six thousand, eight hundred sixty-nine".