7617465706721 has 8 divisors (see below), whose sum is σ = 8425138786344. Its totient is φ = 6841466081280.

The previous prime is 7617465706673. The next prime is 7617465706733. The reversal of 7617465706721 is 1276075647167.

It can be written as a sum of positive squares in 4 ways, for example, as 3862164327121 + 3755301379600 = 1965239^2 + 1937860^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7617465706721 - 2¹⁴ = 7617465690337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7617465706771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7918363040 + ... + 7918364001.

It is an arithmetic number, because the mean of its divisors is an integer number (1053142348293).

Almost surely, 2^{7617465706721} is an apocalyptic number.

It is an amenable number.

7617465706721 is a deficient number, since it is larger than the sum of its proper divisors (807673079623).

7617465706721 is a wasteful number, since it uses less digits than its factorization.

7617465706721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15836727091.

The product of its (nonzero) digits is 20744640, while the sum is 59.

The spelling of 7617465706721 in words is "seven trillion, six hundred seventeen billion, four hundred sixty-five million, seven hundred six thousand, seven hundred twenty-one".