61483321778 has 6 divisors (see below), whose sum is σ = 92225508669. Its totient is φ = 30741485556.

The previous prime is 61483321751. The next prime is 61483321789. The reversal of 61483321778 is 87712338416.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 41671914769 + 19811407009 = 204137^2 + 140753^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=175333.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 263000 + ... + 438332.

Almost surely, 2^61483321778 is an apocalyptic number.

61483321778 is a deficient number, since it is larger than the sum of its proper divisors (30742186891).

61483321778 is an frugal number, since it uses more digits than its factorization.

61483321778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350668 (or 175335 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 50.

Multiplying 61483321778 by its sum of digits (50), we get a square (3074166088900 = 1753330²).

The spelling of 61483321778 in words is "sixty-one billion, four hundred eighty-three million, three hundred twenty-one thousand, seven hundred seventy-eight".