7670440345 has 4 divisors (see below), whose sum is σ = 9204528420. Its totient is φ = 6136352272.

The previous prime is 7670440343. The next prime is 7670440369. The reversal of 7670440345 is 5430440767.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5430440767 = 54979 ⋅98773.

It can be written as a sum of positive squares in 2 ways, for example, as 4885450816 + 2784989529 = 69896^2 + 52773^2 .

It is a cyclic number.

It is not a de Polignac number, because 7670440345 - 2¹ = 7670440343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7670440298 and 7670440307.

It is not an unprimeable number, because it can be changed into a prime (7670440343) 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, 767044030 + ... + 767044039.

It is an arithmetic number, because the mean of its divisors is an integer number (2301132105).

Almost surely, 2^7670440345 is an apocalyptic number.

It is an amenable number.

7670440345 is a deficient number, since it is larger than the sum of its proper divisors (1534088075).

7670440345 is a wasteful number, since it uses less digits than its factorization.

7670440345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534088074.

The product of its (nonzero) digits is 282240, while the sum is 40.

The square root of 7670440345 is about 87581.0501478488. The cubic root of 7670440345 is about 1972.1507037191.

The spelling of 7670440345 in words is "seven billion, six hundred seventy million, four hundred forty thousand, three hundred forty-five".