138493302907 has 2 divisors, whose sum is σ = 138493302908. Its totient is φ = 138493302906.

The previous prime is 138493302881. The next prime is 138493302953. The reversal of 138493302907 is 709203394831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138493302907 - 2¹¹ = 138493300859 is a prime.

It is not a weakly prime, because it can be changed into another prime (138493302107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69246651453 + 69246651454.

It is an arithmetic number, because the mean of its divisors is an integer number (69246651454).

Almost surely, 2^138493302907 is an apocalyptic number.

138493302907 is a deficient number, since it is larger than the sum of its proper divisors (1).

138493302907 is an equidigital number, since it uses as much as digits as its factorization.

138493302907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 138493302907 in words is "one hundred thirty-eight billion, four hundred ninety-three million, three hundred two thousand, nine hundred seven".