1916854095025 has 9 divisors (see below), whose sum is σ = 2376907661793. Its totient is φ = 1533477738000.

The previous prime is 1916854095011. The next prime is 1916854095047. The reversal of 1916854095025 is 5205904586191.

The square root of 1916854095025 is 1384505.

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

It can be written as a sum of positive squares in 4 ways, for example, as 587113010289 + 1329741084736 = 766233^2 + 1153144^2 .

It is not a de Polignac number, because 1916854095025 - 2¹⁵ = 1916854062257 is a prime.

It is a super-2 number, since 2×1916854095025² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6784075 + ... + 7060975.

Almost surely, 2^{1916854095025} is an apocalyptic number.

1916854095025 is the 1384505-th square number.

1916854095025 is the 692253-rd centered octagonal number.

It is an amenable number.

1916854095025 is a deficient number, since it is larger than the sum of its proper divisors (460053566768).

1916854095025 is an frugal number, since it uses more digits than its factorization.

1916854095025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553812 (or 276906 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 55.

The spelling of 1916854095025 in words is "one trillion, nine hundred sixteen billion, eight hundred fifty-four million, ninety-five thousand, twenty-five".