38817188177077 has 2 divisors, whose sum is σ = 38817188177078. Its totient is φ = 38817188177076.

The previous prime is 38817188177063. The next prime is 38817188177137. The reversal of 38817188177077 is 77077188171883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36723709080081 + 2093479096996 = 6060009^2 + 1446886^2 .

It is a cyclic number.

It is not a de Polignac number, because 38817188177077 - 2²⁷ = 38817053959349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38817188177057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19408594088538 + 19408594088539.

It is an arithmetic number, because the mean of its divisors is an integer number (19408594088539).

Almost surely, 2^{38817188177077} is an apocalyptic number.

It is an amenable number.

38817188177077 is a deficient number, since it is larger than the sum of its proper divisors (1).

38817188177077 is an equidigital number, since it uses as much as digits as its factorization.

38817188177077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 206524416, while the sum is 73.

The spelling of 38817188177077 in words is "thirty-eight trillion, eight hundred seventeen billion, one hundred eighty-eight million, one hundred seventy-seven thousand, seventy-seven".