7894654673 has 4 divisors (see below), whose sum is σ = 8087207268. Its totient is φ = 7702102080.

The previous prime is 7894654639. The next prime is 7894654681. The reversal of 7894654673 is 3764564987.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3764564987 = 89 ⋅42298483.

It can be written as a sum of positive squares in 2 ways, for example, as 3924646609 + 3970008064 = 62647^2 + 63008^2 .

It is a cyclic number.

It is not a de Polignac number, because 7894654673 - 2¹⁰ = 7894653649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7894654613) 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, 96276236 + ... + 96276317.

It is an arithmetic number, because the mean of its divisors is an integer number (2021801817).

Almost surely, 2^7894654673 is an apocalyptic number.

It is an amenable number.

7894654673 is a deficient number, since it is larger than the sum of its proper divisors (192552595).

7894654673 is a wasteful number, since it uses less digits than its factorization.

7894654673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192552594.

The product of its digits is 30481920, while the sum is 59.

The square root of 7894654673 is about 88851.8692712764. The cubic root of 7894654673 is about 1991.1824048889.

The spelling of 7894654673 in words is "seven billion, eight hundred ninety-four million, six hundred fifty-four thousand, six hundred seventy-three".