1794139697025 has 81 divisors (see below), whose sum is σ = 3480217596219. Its totient is φ = 883140186240.

The previous prime is 1794139696913. The next prime is 1794139697039. The reversal of 1794139697025 is 5207969314971.

The square root of 1794139697025 is 1339455.

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

1794139697025 is a `hidden beast` number, since 1 + 79 + 413 + 9 + 69 + 70 + 25 = 666.

It can be written as a sum of positive squares in 13 ways, for example, as 1505138839281 + 289000857744 = 1226841^2 + 537588^2 .

It is not a de Polignac number, because 1794139697025 - 2¹³ = 1794139688833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 261190291 + ... + 261197159.

Almost surely, 2^{1794139697025} is an apocalyptic number.

1794139697025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1794139697025 is the 1339455-th square number.

1794139697025 is the 669728-th centered octagonal number.

It is an amenable number.

1794139697025 is a deficient number, since it is larger than the sum of its proper divisors (1686077899194).

1794139697025 is an frugal number, since it uses more digits than its factorization.

1794139697025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13780 (or 6890 counting only the distinct ones).

The product of its (nonzero) digits is 25719120, while the sum is 63.

The spelling of 1794139697025 in words is "one trillion, seven hundred ninety-four billion, one hundred thirty-nine million, six hundred ninety-seven thousand, twenty-five".