38578145629 has 2 divisors, whose sum is σ = 38578145630. Its totient is φ = 38578145628.

The previous prime is 38578145581. The next prime is 38578145633. The reversal of 38578145629 is 92654187583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21637821604 + 16940324025 = 147098^2 + 130155^2 .

It is a cyclic number.

It is not a de Polignac number, because 38578145629 - 2¹⁵ = 38578112861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38578145929) 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, 19289072814 + 19289072815.

It is an arithmetic number, because the mean of its divisors is an integer number (19289072815).

Almost surely, 2^38578145629 is an apocalyptic number.

It is an amenable number.

38578145629 is a deficient number, since it is larger than the sum of its proper divisors (1).

38578145629 is an equidigital number, since it uses as much as digits as its factorization.

38578145629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14515200, while the sum is 58.

The spelling of 38578145629 in words is "thirty-eight billion, five hundred seventy-eight million, one hundred forty-five thousand, six hundred twenty-nine".