38678653423349 has 2 divisors, whose sum is σ = 38678653423350. Its totient is φ = 38678653423348.

The previous prime is 38678653423343. The next prime is 38678653423379. The reversal of 38678653423349 is 94332435687683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19862014449124 + 18816638974225 = 4456682^2 + 4337815^2 .

It is a cyclic number.

It is not a de Polignac number, because 38678653423349 - 2³² = 38674358456053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38678653423343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19339326711674 + 19339326711675.

It is an arithmetic number, because the mean of its divisors is an integer number (19339326711675).

Almost surely, 2^{38678653423349} is an apocalyptic number.

It is an amenable number.

38678653423349 is a deficient number, since it is larger than the sum of its proper divisors (1).

38678653423349 is an equidigital number, since it uses as much as digits as its factorization.

38678653423349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1881169920, while the sum is 71.

The spelling of 38678653423349 in words is "thirty-eight trillion, six hundred seventy-eight billion, six hundred fifty-three million, four hundred twenty-three thousand, three hundred forty-nine".