10216378369 has 4 divisors (see below), whose sum is σ = 10217734996. Its totient is φ = 10215021744.

The previous prime is 10216378357. The next prime is 10216378373. The reversal of 10216378369 is 96387361201.

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 10091207025 + 125171344 = 100455^2 + 11188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10216378369 is a prime.

It is a super-2 number, since 2×10216378369² (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 (10216378339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666954 + ... + 682099.

It is an arithmetic number, because the mean of its divisors is an integer number (2554433749).

Almost surely, 2^10216378369 is an apocalyptic number.

It is an amenable number.

10216378369 is a deficient number, since it is larger than the sum of its proper divisors (1356627).

10216378369 is an equidigital number, since it uses as much as digits as its factorization.

10216378369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356626.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 10216378369 in words is "ten billion, two hundred sixteen million, three hundred seventy-eight thousand, three hundred sixty-nine".