1929696048225 has 81 divisors (see below), whose sum is σ = 3799524893619. Its totient is φ = 935499074400.

The previous prime is 1929696048223. The next prime is 1929696048281. The reversal of 1929696048225 is 5228406969291.

The square root of 1929696048225 is 1389135.

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

1929696048225 is a `hidden beast` number, since 1 + 9 + 2 + 96 + 9 + 60 + 482 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 694690577361 + 1235005470864 = 833481^2 + 1111308^2 .

It is not a de Polignac number, because 1929696048225 - 2¹ = 1929696048223 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1929696048223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 229203066 + ... + 229211484.

Almost surely, 2^{1929696048225} is an apocalyptic number.

1929696048225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1929696048225 is the 1389135-th square number.

1929696048225 is the 694568-th centered octagonal number.

It is an amenable number.

1929696048225 is a deficient number, since it is larger than the sum of its proper divisors (1869828845394).

1929696048225 is an frugal number, since it uses more digits than its factorization.

1929696048225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16876 (or 8438 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 1929696048225 in words is "one trillion, nine hundred twenty-nine billion, six hundred ninety-six million, forty-eight thousand, two hundred twenty-five".