7072064521345 has 4 divisors (see below), whose sum is σ = 8486477425620. Its totient is φ = 5657651617072.

The previous prime is 7072064521343. The next prime is 7072064521367. The reversal of 7072064521345 is 5431254602707.

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 2144534722929 + 4927529798416 = 1464423^2 + 2219804^2 .

It is a cyclic number.

It is not a de Polignac number, because 7072064521345 - 2¹ = 7072064521343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7072064521295 and 7072064521304.

It is not an unprimeable number, because it can be changed into a prime (7072064521343) 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, 707206452130 + ... + 707206452139.

It is an arithmetic number, because the mean of its divisors is an integer number (2121619356405).

Almost surely, 2^{7072064521345} is an apocalyptic number.

It is an amenable number.

7072064521345 is a deficient number, since it is larger than the sum of its proper divisors (1414412904275).

7072064521345 is a wasteful number, since it uses less digits than its factorization.

7072064521345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414412904274.

The product of its (nonzero) digits is 1411200, while the sum is 46.

The spelling of 7072064521345 in words is "seven trillion, seventy-two billion, sixty-four million, five hundred twenty-one thousand, three hundred forty-five".