10219643268 has 48 divisors (see below), whose sum is σ = 25740650880. Its totient is φ = 3146074624.

The previous prime is 10219643261. The next prime is 10219643311. The reversal of 10219643268 is 86234691201.

It is a super-2 number, since 2×10219643268² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10219643261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 630405 + ... + 646412.

It is an arithmetic number, because the mean of its divisors is an integer number (536263560).

Almost surely, 2^10219643268 is an apocalyptic number.

It is an amenable number.

10219643268 is an abundant number, since it is smaller than the sum of its proper divisors (15521007612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10219643268 is a wasteful number, since it uses less digits than its factorization.

10219643268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276876 (or 1276874 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 10219643268 in words is "ten billion, two hundred nineteen million, six hundred forty-three thousand, two hundred sixty-eight".