38823105396869 has 2 divisors, whose sum is σ = 38823105396870. Its totient is φ = 38823105396868.

The previous prime is 38823105396851. The next prime is 38823105396923. The reversal of 38823105396869 is 96869350132883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26790323827969 + 12032781568900 = 5175937^2 + 3468830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38823105396869 is a prime.

It is a super-2 number, since 2×38823105396869² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38823105326869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19411552698434 + 19411552698435.

It is an arithmetic number, because the mean of its divisors is an integer number (19411552698435).

Almost surely, 2^{38823105396869} is an apocalyptic number.

It is an amenable number.

38823105396869 is a deficient number, since it is larger than the sum of its proper divisors (1).

38823105396869 is an equidigital number, since it uses as much as digits as its factorization.

38823105396869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403107840, while the sum is 71.

The spelling of 38823105396869 in words is "thirty-eight trillion, eight hundred twenty-three billion, one hundred five million, three hundred ninety-six thousand, eight hundred sixty-nine".