919460443225 has 81 divisors (see below), whose sum is σ = 1257579054277. Its totient is φ = 666708904960.

The previous prime is 919460443217. The next prime is 919460443249. The reversal of 919460443225 is 522344064919.

The square root of 919460443225 is 958885.

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

It can be written as a sum of positive squares in 40 ways, for example, as 910274370889 + 9186072336 = 954083^2 + 95844^2 .

It is not a de Polignac number, because 919460443225 - 2³ = 919460443217 is a prime.

It is a Duffinian number.

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, 2363651331 + ... + 2363651719.

Almost surely, 2^919460443225 is an apocalyptic number.

919460443225 is the 958885-th square number.

919460443225 is the 479443-rd centered octagonal number.

It is an amenable number.

919460443225 is a deficient number, since it is larger than the sum of its proper divisors (338118611052).

919460443225 is an equidigital number, since it uses as much as digits as its factorization.

919460443225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 49.

Multiplying 919460443225 by its sum of digits (49), we get a square (45053561718025 = 6712195²).

The spelling of 919460443225 in words is "nine hundred nineteen billion, four hundred sixty million, four hundred forty-three thousand, two hundred twenty-five".