7665000073 has 4 divisors (see below), whose sum is σ = 7770000148. Its totient is φ = 7560000000.

The previous prime is 7665000059. The next prime is 7665000151. The reversal of 7665000073 is 3700005667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3700005667 = 19447 ⋅190261.

It can be written as a sum of positive squares in 2 ways, for example, as 5501633929 + 2163366144 = 74173^2 + 46512^2 .

It is a cyclic number.

It is not a de Polignac number, because 7665000073 - 2⁹ = 7664999561 is a prime.

It is a super-2 number, since 2×7665000073² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7665000173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52499928 + ... + 52500073.

It is an arithmetic number, because the mean of its divisors is an integer number (1942500037).

Almost surely, 2^7665000073 is an apocalyptic number.

7665000073 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

7665000073 is a deficient number, since it is larger than the sum of its proper divisors (105000075).

7665000073 is a wasteful number, since it uses less digits than its factorization.

7665000073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105000074.

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 7665000073 is about 87549.9861393478. The cubic root of 7665000073 is about 1971.6843431062.

The spelling of 7665000073 in words is "seven billion, six hundred sixty-five million, seventy-three", and thus it is an aban number.