38994329697077 has 2 divisors, whose sum is σ = 38994329697078. Its totient is φ = 38994329697076.

The previous prime is 38994329697019. The next prime is 38994329697101. The reversal of 38994329697077 is 77079692349983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34698862049476 + 4295467647601 = 5890574^2 + 2072551^2 .

It is a cyclic number.

It is not a de Polignac number, because 38994329697077 - 2¹⁸ = 38994329434933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38994329696986 and 38994329697004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38994329697377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19497164848538 + 19497164848539.

It is an arithmetic number, because the mean of its divisors is an integer number (19497164848539).

Almost surely, 2^{38994329697077} is an apocalyptic number.

It is an amenable number.

38994329697077 is a deficient number, since it is larger than the sum of its proper divisors (1).

38994329697077 is an equidigital number, since it uses as much as digits as its factorization.

38994329697077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7777461888, while the sum is 83.

The spelling of 38994329697077 in words is "thirty-eight trillion, nine hundred ninety-four billion, three hundred twenty-nine million, six hundred ninety-seven thousand, seventy-seven".