7645015617 has 64 divisors (see below), whose sum is σ = 11779891200. Its totient is φ = 4378199040.

The previous prime is 7645015519. The next prime is 7645015633. The reversal of 7645015617 is 7165105467.

It is not a de Polignac number, because 7645015617 - 2¹⁰ = 7645014593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7645014617) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9221559 + ... + 9222387.

It is an arithmetic number, because the mean of its divisors is an integer number (184060800).

Almost surely, 2^7645015617 is an apocalyptic number.

It is an amenable number.

7645015617 is a deficient number, since it is larger than the sum of its proper divisors (4134875583).

7645015617 is a wasteful number, since it uses less digits than its factorization.

7645015617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206.

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 7645015617 is about 87435.7799587789. The cubic root of 7645015617 is about 1969.9693036350.

The spelling of 7645015617 in words is "seven billion, six hundred forty-five million, fifteen thousand, six hundred seventeen".