11219681929 has 9 divisors (see below), whose sum is σ = 11383326759. Its totient is φ = 11058361200.

The previous prime is 11219681927. The next prime is 11219681999. The reversal of 11219681929 is 92918691211.

The square root of 11219681929 is 105923.

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

11219681929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6368838025 + 4850843904 = 79805^2 + 69648^2 .

It is not a de Polignac number, because 11219681929 - 2¹ = 11219681927 is a prime.

It is a super-2 number, since 2×11219681929² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11219681927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7731654 + ... + 7733104.

Almost surely, 2^11219681929 is an apocalyptic number.

11219681929 is the 105923-rd square number.

11219681929 is the 52962-nd centered octagonal number.

It is an amenable number.

11219681929 is a deficient number, since it is larger than the sum of its proper divisors (163644830).

11219681929 is an frugal number, since it uses more digits than its factorization.

11219681929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048 (or 1524 counting only the distinct ones).

The product of its digits is 139968, while the sum is 49.

Multiplying 11219681929 by its sum of digits (49), we get a square (549764414521 = 741461²).

The spelling of 11219681929 in words is "eleven billion, two hundred nineteen million, six hundred eighty-one thousand, nine hundred twenty-nine".