938470749989 has 2 divisors, whose sum is σ = 938470749990. Its totient is φ = 938470749988.

The previous prime is 938470749959. The next prime is 938470750037. The reversal of 938470749989 is 989947074839.

938470749989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 829844477764 + 108626272225 = 910958^2 + 329585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-938470749989 is a prime.

It is a super-2 number, since 2×938470749989² (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 (938470749919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469235374994 + 469235374995.

It is an arithmetic number, because the mean of its divisors is an integer number (469235374995).

Almost surely, 2^938470749989 is an apocalyptic number.

It is an amenable number.

938470749989 is a deficient number, since it is larger than the sum of its proper divisors (1).

938470749989 is an equidigital number, since it uses as much as digits as its factorization.

938470749989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 987614208, while the sum is 77.

The spelling of 938470749989 in words is "nine hundred thirty-eight billion, four hundred seventy million, seven hundred forty-nine thousand, nine hundred eighty-nine".