4891594773025 has 81 divisors (see below), whose sum is σ = 6623605599219. Its totient is φ = 3582945900000.

The previous prime is 4891594773019. The next prime is 4891594773031. The reversal of 4891594773025 is 5203774951984.

The square root of 4891594773025 is 2211695.

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

It is an interprime number because it is at equal distance from previous prime (4891594773019) and next prime (4891594773031).

It can be written as a sum of positive squares in only one way, i.e., 1760974118289 + 3130620654736 = 1327017^2 + 1769356^2 .

It is not a de Polignac number, because 4891594773025 - 2⁵ = 4891594772993 is a prime.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 6513441400 + ... + 6513442150.

Almost surely, 2^{4891594773025} is an apocalyptic number.

4891594773025 is the 2211695-th square number.

4891594773025 is the 1105848-th centered octagonal number.

It is an amenable number.

4891594773025 is a deficient number, since it is larger than the sum of its proper divisors (1732010826194).

4891594773025 is an frugal number, since it uses more digits than its factorization.

4891594773025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 64.

Multiplying 4891594773025 by its sum of digits (64), we get a square (313062065473600 = 17693560²).

The spelling of 4891594773025 in words is "four trillion, eight hundred ninety-one billion, five hundred ninety-four million, seven hundred seventy-three thousand, twenty-five".