9780751073 has 2 divisors, whose sum is σ = 9780751074. Its totient is φ = 9780751072.

The previous prime is 9780751067. The next prime is 9780751129. The reversal of 9780751073 is 3701570879.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9522441889 + 258309184 = 97583^2 + 16072^2 .

It is an emirp because it is prime and its reverse (3701570879) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9780751073 - 2³⁰ = 8707009249 is a prime.

It is not a weakly prime, because it can be changed into another prime (9780751003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4890375536 + 4890375537.

It is an arithmetic number, because the mean of its divisors is an integer number (4890375537).

Almost surely, 2^9780751073 is an apocalyptic number.

It is an amenable number.

9780751073 is a deficient number, since it is larger than the sum of its proper divisors (1).

9780751073 is an equidigital number, since it uses as much as digits as its factorization.

9780751073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 370440, while the sum is 47.

The square root of 9780751073 is about 98897.6798160604. The cubic root of 9780751073 is about 2138.5729468148.

The spelling of 9780751073 in words is "nine billion, seven hundred eighty million, seven hundred fifty-one thousand, seventy-three".