7285865072865 has 16 divisors (see below), whose sum is σ = 11708289729600. Its totient is φ = 3868826167872.

The previous prime is 7285865072833. The next prime is 7285865072869. The reversal of 7285865072865 is 5682705685827.

It is not a de Polignac number, because 7285865072865 - 2⁵ = 7285865072833 is a prime.

It is a super-2 number, since 2×7285865072865² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7285865072865.

It is not an unprimeable number, because it can be changed into a prime (7285865072869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1060530055 + ... + 1060536924.

It is an arithmetic number, because the mean of its divisors is an integer number (731768108100).

Almost surely, 2^{7285865072865} is an apocalyptic number.

It is an amenable number.

7285865072865 is a deficient number, since it is larger than the sum of its proper divisors (4422424656735).

7285865072865 is a wasteful number, since it uses less digits than its factorization.

7285865072865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121067216.

The product of its (nonzero) digits is 451584000, while the sum is 69.

The spelling of 7285865072865 in words is "seven trillion, two hundred eighty-five billion, eight hundred sixty-five million, seventy-two thousand, eight hundred sixty-five".