747670709389 has 2 divisors, whose sum is σ = 747670709390. Its totient is φ = 747670709388.

The previous prime is 747670709369. The next prime is 747670709393. The reversal of 747670709389 is 983907076747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 746064062500 + 1606646889 = 863750^2 + 40083^2 .

It is a cyclic number.

It is not a de Polignac number, because 747670709389 - 2⁹ = 747670708877 is a prime.

It is a super-2 number, since 2×747670709389² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (747670709309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373835354694 + 373835354695.

It is an arithmetic number, because the mean of its divisors is an integer number (373835354695).

Almost surely, 2^747670709389 is an apocalyptic number.

It is an amenable number.

747670709389 is a deficient number, since it is larger than the sum of its proper divisors (1).

747670709389 is an equidigital number, since it uses as much as digits as its factorization.

747670709389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112021056, while the sum is 67.

The spelling of 747670709389 in words is "seven hundred forty-seven billion, six hundred seventy million, seven hundred nine thousand, three hundred eighty-nine".