2078609617 has 16 divisors (see below), whose sum is σ = 2400640000. Its totient is φ = 1762896960.

The previous prime is 2078609609. The next prime is 2078609627. The reversal of 2078609617 is 7169068702.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2078609617 - 2³ = 2078609609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2078609627) 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, 754759 + ... + 757507.

It is an arithmetic number, because the mean of its divisors is an integer number (150040000).

Almost surely, 2^2078609617 is an apocalyptic number.

It is an amenable number.

2078609617 is a deficient number, since it is larger than the sum of its proper divisors (322030383).

2078609617 is a wasteful number, since it uses less digits than its factorization.

2078609617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3856.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 2078609617 is about 45591.7713737907. The cubic root of 2078609617 is about 1276.2163692745.

The spelling of 2078609617 in words is "two billion, seventy-eight million, six hundred nine thousand, six hundred seventeen".