147819920077 has 4 divisors (see below), whose sum is σ = 148301418496. Its totient is φ = 147338421660.

The previous prime is 147819920071. The next prime is 147819920099. The reversal of 147819920077 is 770029918741.

147819920077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 770029918741 = 17 ⋅45295877573.

It is a cyclic number.

It is not a de Polignac number, because 147819920077 - 2³ = 147819920069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147819920071) 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 3 ways as a sum of consecutive naturals, for example, 240748749 + ... + 240749362.

It is an arithmetic number, because the mean of its divisors is an integer number (37075354624).

Almost surely, 2^147819920077 is an apocalyptic number.

It is an amenable number.

147819920077 is a deficient number, since it is larger than the sum of its proper divisors (481498419).

147819920077 is an equidigital number, since it uses as much as digits as its factorization.

147819920077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481498418.

The product of its (nonzero) digits is 1778112, while the sum is 55.

The spelling of 147819920077 in words is "one hundred forty-seven billion, eight hundred nineteen million, nine hundred twenty thousand, seventy-seven".