4072745965 has 4 divisors (see below), whose sum is σ = 4887295164. Its totient is φ = 3258196768.

The previous prime is 4072745933. The next prime is 4072746011. The reversal of 4072745965 is 5695472704.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1740725284 + 2332020681 = 41722^2 + 48291^2 .

It is a cyclic number.

It is not a de Polignac number, because 4072745965 - 2⁵ = 4072745933 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407274592 + ... + 407274601.

It is an arithmetic number, because the mean of its divisors is an integer number (1221823791).

Almost surely, 2^4072745965 is an apocalyptic number.

It is an amenable number.

4072745965 is a deficient number, since it is larger than the sum of its proper divisors (814549199).

4072745965 is an equidigital number, since it uses as much as digits as its factorization.

4072745965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814549198.

The product of its (nonzero) digits is 2116800, while the sum is 49.

The square root of 4072745965 is about 63818.0692672538. The cubic root of 4072745965 is about 1596.9663827234.

The spelling of 4072745965 in words is "four billion, seventy-two million, seven hundred forty-five thousand, nine hundred sixty-five".