4025073645 has 24 divisors (see below), whose sum is σ = 6993399192. Its totient is φ = 2141596800.

The previous prime is 4025073587. The next prime is 4025073659. The reversal of 4025073645 is 5463705204.

4025073645 is a `hidden beast` number, since 4 + 0 + 2 + 5 + 0 + 7 + 3 + 645 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 436224996 + 3588848649 = 20886^2 + 59907^2 .

It is not a de Polignac number, because 4025073645 - 2⁷ = 4025073517 is a prime.

It is a super-3 number, since 3×4025073645³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87286 + ... + 125175.

It is an arithmetic number, because the mean of its divisors is an integer number (291391633).

Almost surely, 2^4025073645 is an apocalyptic number.

4025073645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4025073645 is a deficient number, since it is larger than the sum of its proper divisors (2968325547).

4025073645 is a wasteful number, since it uses less digits than its factorization.

4025073645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212893 (or 212890 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 4025073645 is about 63443.4681035014. The cubic root of 4025073645 is about 1590.7109731271.

Adding to 4025073645 its reverse (5463705204), we get a palindrome (9488778849).

The spelling of 4025073645 in words is "four billion, twenty-five million, seventy-three thousand, six hundred forty-five".