10219794649 has 9 divisors (see below), whose sum is σ = 10467443829. Its totient is φ = 9977879100.

The previous prime is 10219794623. The next prime is 10219794691. The reversal of 10219794649 is 94649791201.

The square root of 10219794649 is 101093.

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

It is not a de Polignac number, because 10219794649 - 2¹⁹ = 10219270361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10219794596 and 10219794605.

It is not an unprimeable number, because it can be changed into a prime (10219794349) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4345824 + ... + 4348174.

Almost surely, 2^10219794649 is an apocalyptic number.

10219794649 is the 101093-rd square number.

10219794649 is the 50547-th centered octagonal number.

It is an amenable number.

10219794649 is a deficient number, since it is larger than the sum of its proper divisors (247649180).

10219794649 is an frugal number, since it uses more digits than its factorization.

10219794649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4788 (or 2394 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 52.

The spelling of 10219794649 in words is "ten billion, two hundred nineteen million, seven hundred ninety-four thousand, six hundred forty-nine".