7121970673 has 2 divisors, whose sum is σ = 7121970674. Its totient is φ = 7121970672.

The previous prime is 7121970671. The next prime is 7121970683. The reversal of 7121970673 is 3760791217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4798055824 + 2323914849 = 69268^2 + 48207^2 .

It is a cyclic number.

It is not a de Polignac number, because 7121970673 - 2¹ = 7121970671 is a prime.

Together with 7121970671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7121970671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3560985336 + 3560985337.

It is an arithmetic number, because the mean of its divisors is an integer number (3560985337).

Almost surely, 2^7121970673 is an apocalyptic number.

It is an amenable number.

7121970673 is a deficient number, since it is larger than the sum of its proper divisors (1).

7121970673 is an equidigital number, since it uses as much as digits as its factorization.

7121970673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 111132, while the sum is 43.

The square root of 7121970673 is about 84391.7689884505. The cubic root of 7121970673 is about 1923.9778166084.

The spelling of 7121970673 in words is "seven billion, one hundred twenty-one million, nine hundred seventy thousand, six hundred seventy-three".