149814669439 has 2 divisors, whose sum is σ = 149814669440. Its totient is φ = 149814669438.

The previous prime is 149814669413. The next prime is 149814669491. The reversal of 149814669439 is 934966418941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149814669439 - 2¹¹ = 149814667391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149814669409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74907334719 + 74907334720.

It is an arithmetic number, because the mean of its divisors is an integer number (74907334720).

Almost surely, 2^149814669439 is an apocalyptic number.

149814669439 is a deficient number, since it is larger than the sum of its proper divisors (1).

149814669439 is an equidigital number, since it uses as much as digits as its factorization.

149814669439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40310784, while the sum is 64.

The spelling of 149814669439 in words is "one hundred forty-nine billion, eight hundred fourteen million, six hundred sixty-nine thousand, four hundred thirty-nine".