39148531189 has 2 divisors, whose sum is σ = 39148531190. Its totient is φ = 39148531188.

The previous prime is 39148531183. The next prime is 39148531217. The reversal of 39148531189 is 98113584193.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38757796900 + 390734289 = 196870^2 + 19767^2 .

It is a cyclic number.

It is not a de Polignac number, because 39148531189 - 2¹⁷ = 39148400117 is a prime.

It is a super-2 number, since 2×39148531189² (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 (39148531183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19574265594 + 19574265595.

It is an arithmetic number, because the mean of its divisors is an integer number (19574265595).

Almost surely, 2^39148531189 is an apocalyptic number.

It is an amenable number.

39148531189 is a deficient number, since it is larger than the sum of its proper divisors (1).

39148531189 is an equidigital number, since it uses as much as digits as its factorization.

39148531189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 52.

The spelling of 39148531189 in words is "thirty-nine billion, one hundred forty-eight million, five hundred thirty-one thousand, one hundred eighty-nine".