1464809814225 has 18 divisors (see below), whose sum is σ = 2623637134326. Its totient is φ = 781231900800.

The previous prime is 1464809814191. The next prime is 1464809814229. The reversal of 1464809814225 is 5224189084641.

1464809814225 is a `hidden beast` number, since 1 + 4 + 64 + 80 + 9 + 81 + 422 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 423601817409 + 1041207996816 = 650847^2 + 1020396^2 .

It is not a de Polignac number, because 1464809814225 - 2⁸ = 1464809813969 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1464809814229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3255132696 + ... + 3255133145.

Almost surely, 2^{1464809814225} is an apocalyptic number.

1464809814225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1464809814225 is a deficient number, since it is larger than the sum of its proper divisors (1158827320101).

1464809814225 is a wasteful number, since it uses less digits than its factorization.

1464809814225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6510265857 (or 6510265849 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 1464809814225 in words is "one trillion, four hundred sixty-four billion, eight hundred nine million, eight hundred fourteen thousand, two hundred twenty-five".