757989989749 has 2 divisors, whose sum is σ = 757989989750. Its totient is φ = 757989989748.

The previous prime is 757989989717. The next prime is 757989989759. The reversal of 757989989749 is 947989989757.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 512395409124 + 245594580625 = 715818^2 + 495575^2 .

It is a cyclic number.

It is not a de Polignac number, because 757989989749 - 2⁵ = 757989989717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (757989989759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 378994994874 + 378994994875.

It is an arithmetic number, because the mean of its divisors is an integer number (378994994875).

Almost surely, 2^757989989749 is an apocalyptic number.

It is an amenable number.

757989989749 is a deficient number, since it is larger than the sum of its proper divisors (1).

757989989749 is an equidigital number, since it uses as much as digits as its factorization.

757989989749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25924872960, while the sum is 91.

The spelling of 757989989749 in words is "seven hundred fifty-seven billion, nine hundred eighty-nine million, nine hundred eighty-nine thousand, seven hundred forty-nine".