10010602809 has 15 divisors (see below), whose sum is σ = 14955455647. Its totient is φ = 6673134888.

The previous prime is 10010602807. The next prime is 10010602817. The reversal of 10010602809 is 90820601001.

The square root of 10010602809 is 100053.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1093955625 + 8916647184 = 33075^2 + 94428^2 .

It is not a de Polignac number, because 10010602809 - 2¹ = 10010602807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10010602807) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 894919 + ... + 906035.

Almost surely, 2^10010602809 is an apocalyptic number.

10010602809 is the 100053-rd square number.

10010602809 is the 50027-th centered octagonal number.

It is an amenable number.

10010602809 is a deficient number, since it is larger than the sum of its proper divisors (4944852838).

10010602809 is an frugal number, since it uses more digits than its factorization.

10010602809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22246 (or 11120 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The spelling of 10010602809 in words is "ten billion, ten million, six hundred two thousand, eight hundred nine".