4545917807 has 4 divisors (see below), whose sum is σ = 4546773336. Its totient is φ = 4545062280.

The previous prime is 4545917797. The next prime is 4545917813. The reversal of 4545917807 is 7087195454.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7087195454 = 2 ⋅3543597727.

It is a cyclic number.

It is not a de Polignac number, because 4545917807 - 2⁶ = 4545917743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4545910807) 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, 419744 + ... + 430437.

It is an arithmetic number, because the mean of its divisors is an integer number (1136693334).

Almost surely, 2^4545917807 is an apocalyptic number.

4545917807 is a deficient number, since it is larger than the sum of its proper divisors (855529).

4545917807 is an equidigital number, since it uses as much as digits as its factorization.

4545917807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855528.

The product of its (nonzero) digits is 1411200, while the sum is 50.

The square root of 4545917807 is about 67423.4217983632. The cubic root of 4545917807 is about 1656.5600860459.

The spelling of 4545917807 in words is "four billion, five hundred forty-five million, nine hundred seventeen thousand, eight hundred seven".