38518476229 has 2 divisors, whose sum is σ = 38518476230. Its totient is φ = 38518476228.

The previous prime is 38518476197. The next prime is 38518476281. The reversal of 38518476229 is 92267481583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36582300225 + 1936176004 = 191265^2 + 44002^2 .

It is an emirp because it is prime and its reverse (92267481583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38518476229 - 2⁵ = 38518476197 is a prime.

It is a super-2 number, since 2×38518476229² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38518476229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38518486229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19259238114 + 19259238115.

It is an arithmetic number, because the mean of its divisors is an integer number (19259238115).

Almost surely, 2^38518476229 is an apocalyptic number.

It is an amenable number.

38518476229 is a deficient number, since it is larger than the sum of its proper divisors (1).

38518476229 is an equidigital number, since it uses as much as digits as its factorization.

38518476229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5806080, while the sum is 55.

The spelling of 38518476229 in words is "thirty-eight billion, five hundred eighteen million, four hundred seventy-six thousand, two hundred twenty-nine".