149764442677 has 2 divisors, whose sum is σ = 149764442678. Its totient is φ = 149764442676.

The previous prime is 149764442657. The next prime is 149764442687. The reversal of 149764442677 is 776244467941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81973988721 + 67790453956 = 286311^2 + 260366^2 .

It is a cyclic number.

It is not a de Polignac number, because 149764442677 - 2³⁵ = 115404704309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149764442627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74882221338 + 74882221339.

It is an arithmetic number, because the mean of its divisors is an integer number (74882221339).

Almost surely, 2^149764442677 is an apocalyptic number.

It is an amenable number.

149764442677 is a deficient number, since it is larger than the sum of its proper divisors (1).

149764442677 is an equidigital number, since it uses as much as digits as its factorization.

149764442677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56899584, while the sum is 61.

The spelling of 149764442677 in words is "one hundred forty-nine billion, seven hundred sixty-four million, four hundred forty-two thousand, six hundred seventy-seven".