149197269647 has 2 divisors, whose sum is σ = 149197269648. Its totient is φ = 149197269646.

The previous prime is 149197269629. The next prime is 149197269709. The reversal of 149197269647 is 746962791941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149197269647 - 2⁶ = 149197269583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149197262647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74598634823 + 74598634824.

It is an arithmetic number, because the mean of its divisors is an integer number (74598634824).

Almost surely, 2^149197269647 is an apocalyptic number.

149197269647 is a deficient number, since it is larger than the sum of its proper divisors (1).

149197269647 is an equidigital number, since it uses as much as digits as its factorization.

149197269647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41150592, while the sum is 65.

The spelling of 149197269647 in words is "one hundred forty-nine billion, one hundred ninety-seven million, two hundred sixty-nine thousand, six hundred forty-seven".