7271445065 has 32 divisors (see below), whose sum is σ = 9513504000. Its totient is φ = 5314353408.

The previous prime is 7271445043. The next prime is 7271445067. The reversal of 7271445065 is 5605441727.

It is a cyclic number.

It is not a de Polignac number, because 7271445065 - 2¹⁸ = 7271182921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7271445067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3935972 + ... + 3937818.

It is an arithmetic number, because the mean of its divisors is an integer number (297297000).

Almost surely, 2^7271445065 is an apocalyptic number.

It is an amenable number.

7271445065 is a deficient number, since it is larger than the sum of its proper divisors (2242058935).

7271445065 is a wasteful number, since it uses less digits than its factorization.

7271445065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329.

The product of its (nonzero) digits is 235200, while the sum is 41.

The square root of 7271445065 is about 85272.7686017054. The cubic root of 7271445065 is about 1937.3447453258.

The spelling of 7271445065 in words is "seven billion, two hundred seventy-one million, four hundred forty-five thousand, sixty-five".