149042957777 has 8 divisors (see below), whose sum is σ = 177740670336. Its totient is φ = 122196710592.

The previous prime is 149042957759. The next prime is 149042957779. The reversal of 149042957777 is 777759240941.

149042957777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149042957777 - 2⁸ = 149042957521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149042957779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462866168 + ... + 462866489.

It is an arithmetic number, because the mean of its divisors is an integer number (22217583792).

Almost surely, 2^149042957777 is an apocalyptic number.

It is an amenable number.

149042957777 is a deficient number, since it is larger than the sum of its proper divisors (28697712559).

149042957777 is an equidigital number, since it uses as much as digits as its factorization.

149042957777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925732687.

The product of its (nonzero) digits is 31116960, while the sum is 62.

The spelling of 149042957777 in words is "one hundred forty-nine billion, forty-two million, nine hundred fifty-seven thousand, seven hundred seventy-seven".