745770070789 has 2 divisors, whose sum is σ = 745770070790. Its totient is φ = 745770070788.

The previous prime is 745770070667. The next prime is 745770070819. The reversal of 745770070789 is 987070077547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 605257548289 + 140512522500 = 777983^2 + 374850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-745770070789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745770070189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372885035394 + 372885035395.

It is an arithmetic number, because the mean of its divisors is an integer number (372885035395).

Almost surely, 2^745770070789 is an apocalyptic number.

It is an amenable number.

745770070789 is a deficient number, since it is larger than the sum of its proper divisors (1).

745770070789 is an equidigital number, since it uses as much as digits as its factorization.

745770070789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24202080, while the sum is 61.

The spelling of 745770070789 in words is "seven hundred forty-five billion, seven hundred seventy million, seventy thousand, seven hundred eighty-nine".