38626689029 has 2 divisors, whose sum is σ = 38626689030. Its totient is φ = 38626689028.

The previous prime is 38626689019. The next prime is 38626689067. The reversal of 38626689029 is 92098662683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38613036004 + 13653025 = 196502^2 + 3695^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38626689029 is a prime.

It is a super-2 number, since 2×38626689029² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38626689019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19313344514 + 19313344515.

It is an arithmetic number, because the mean of its divisors is an integer number (19313344515).

Almost surely, 2^38626689029 is an apocalyptic number.

It is an amenable number.

38626689029 is a deficient number, since it is larger than the sum of its proper divisors (1).

38626689029 is an equidigital number, since it uses as much as digits as its factorization.

38626689029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13436928, while the sum is 59.

The spelling of 38626689029 in words is "thirty-eight billion, six hundred twenty-six million, six hundred eighty-nine thousand, twenty-nine".