61174968443 has 4 divisors (see below), whose sum is σ = 61191885240. Its totient is φ = 61158051648.

The previous prime is 61174968347. The next prime is 61174968473. The reversal of 61174968443 is 34486947116.

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

It is a cyclic number.

It is not a de Polignac number, because 61174968443 - 2⁸ = 61174968187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61174968473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8452973 + ... + 8460206.

It is an arithmetic number, because the mean of its divisors is an integer number (15297971310).

Almost surely, 2^61174968443 is an apocalyptic number.

61174968443 is a deficient number, since it is larger than the sum of its proper divisors (16916797).

61174968443 is a wasteful number, since it uses less digits than its factorization.

61174968443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16916796.

The product of its digits is 3483648, while the sum is 53.

The spelling of 61174968443 in words is "sixty-one billion, one hundred seventy-four million, nine hundred sixty-eight thousand, four hundred forty-three".