147783546385 has 4 divisors (see below), whose sum is σ = 177340255668. Its totient is φ = 118226837104.

The previous prime is 147783546377. The next prime is 147783546397. The reversal of 147783546385 is 583645387741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47029994496 + 100753551889 = 216864^2 + 317417^2 .

It is a cyclic number.

It is not a de Polignac number, because 147783546385 - 2³ = 147783546377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 14778354634 + ... + 14778354643.

It is an arithmetic number, because the mean of its divisors is an integer number (44335063917).

Almost surely, 2^147783546385 is an apocalyptic number.

It is an amenable number.

147783546385 is a deficient number, since it is larger than the sum of its proper divisors (29556709283).

147783546385 is an equidigital number, since it uses as much as digits as its factorization.

147783546385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29556709282.

The product of its digits is 67737600, while the sum is 61.

The spelling of 147783546385 in words is "one hundred forty-seven billion, seven hundred eighty-three million, five hundred forty-six thousand, three hundred eighty-five".