938121000977 has 2 divisors, whose sum is σ = 938121000978. Its totient is φ = 938121000976.

The previous prime is 938121000953. The next prime is 938121000979. The reversal of 938121000977 is 779000121839.

938121000977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 478187463121 + 459933537856 = 691511^2 + 678184^2 .

It is a cyclic number.

It is not a de Polignac number, because 938121000977 - 2⁸ = 938121000721 is a prime.

Together with 938121000979, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (938121000979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469060500488 + 469060500489.

It is an arithmetic number, because the mean of its divisors is an integer number (469060500489).

Almost surely, 2^938121000977 is an apocalyptic number.

It is an amenable number.

938121000977 is a deficient number, since it is larger than the sum of its proper divisors (1).

938121000977 is an equidigital number, since it uses as much as digits as its factorization.

938121000977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 47.

The spelling of 938121000977 in words is "nine hundred thirty-eight billion, one hundred twenty-one million, nine hundred seventy-seven", and thus it is an aban number.