7028072045 has 4 divisors (see below), whose sum is σ = 8433686460. Its totient is φ = 5622457632.

The previous prime is 7028072039. The next prime is 7028072063. The reversal of 7028072045 is 5402708207.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3783972196 + 3244099849 = 61514^2 + 56957^2 .

It is a cyclic number.

It is not a de Polignac number, because 7028072045 - 2⁸ = 7028071789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7028071996 and 7028072014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702807200 + ... + 702807209.

It is an arithmetic number, because the mean of its divisors is an integer number (2108421615).

Almost surely, 2^7028072045 is an apocalyptic number.

It is an amenable number.

7028072045 is a deficient number, since it is larger than the sum of its proper divisors (1405614415).

7028072045 is a wasteful number, since it uses less digits than its factorization.

7028072045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405614414.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 7028072045 is about 83833.5973521356. The cubic root of 7028072045 is about 1915.4849097089.

The spelling of 7028072045 in words is "seven billion, twenty-eight million, seventy-two thousand, forty-five".