4351265985 has 32 divisors (see below), whose sum is σ = 7598010240. Its totient is φ = 2108851200.

The previous prime is 4351265951. The next prime is 4351265987. The reversal of 4351265985 is 5895621534.

It is not a de Polignac number, because 4351265985 - 2¹⁰ = 4351264961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4351265987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 638295 + ... + 645075.

It is an arithmetic number, because the mean of its divisors is an integer number (237437820).

Almost surely, 2^4351265985 is an apocalyptic number.

It is an amenable number.

4351265985 is a deficient number, since it is larger than the sum of its proper divisors (3246744255).

4351265985 is a wasteful number, since it uses less digits than its factorization.

4351265985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10689.

The product of its digits is 1296000, while the sum is 48.

The square root of 4351265985 is about 65964.1265006973. The cubic root of 4351265985 is about 1632.5702465108.

The spelling of 4351265985 in words is "four billion, three hundred fifty-one million, two hundred sixty-five thousand, nine hundred eighty-five".