38994491763977 has 2 divisors, whose sum is σ = 38994491763978. Its totient is φ = 38994491763976.

The previous prime is 38994491763967. The next prime is 38994491764013. The reversal of 38994491763977 is 77936719449983.

It is a happy number.

38994491763977 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., 26092236099136 + 12902255664841 = 5108056^2 + 3591971^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38994491763977 is a prime.

It is not a weakly prime, because it can be changed into another prime (38994491763967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19497245881988 + 19497245881989.

It is an arithmetic number, because the mean of its divisors is an integer number (19497245881989).

Almost surely, 2^{38994491763977} is an apocalyptic number.

It is an amenable number.

38994491763977 is a deficient number, since it is larger than the sum of its proper divisors (1).

38994491763977 is an equidigital number, since it uses as much as digits as its factorization.

38994491763977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15554923776, while the sum is 86.

The spelling of 38994491763977 in words is "thirty-eight trillion, nine hundred ninety-four billion, four hundred ninety-one million, seven hundred sixty-three thousand, nine hundred seventy-seven".