61983238916 has 12 divisors (see below), whose sum is σ = 108728321100. Its totient is φ = 30918004320.

The previous prime is 61983238897. The next prime is 61983238921.

It is a happy number.

61983238916 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 4505094400 + 57478144516 = 67120^2 + 239746^2 .

It is an unprimeable number.

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, 18401891 + ... + 18405258.

It is an arithmetic number, because the mean of its divisors is an integer number (9060693425).

Almost surely, 2^61983238916 is an apocalyptic number.

It is an amenable number.

61983238916 is a deficient number, since it is larger than the sum of its proper divisors (46745082184).

61983238916 is a wasteful number, since it uses less digits than its factorization.

61983238916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36807574 (or 36807572 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 56.

The spelling of 61983238916 in words is "sixty-one billion, nine hundred eighty-three million, two hundred thirty-eight thousand, nine hundred sixteen".