61194486745 has 16 divisors (see below), whose sum is σ = 84107530368. Its totient is φ = 41870102400.

The previous prime is 61194486719. The next prime is 61194486751. The reversal of 61194486745 is 54768449116.

It is not a de Polignac number, because 61194486745 - 2¹⁵ = 61194453977 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 (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1896931 + ... + 1928920.

It is an arithmetic number, because the mean of its divisors is an integer number (5256720648).

Almost surely, 2^61194486745 is an apocalyptic number.

It is an amenable number.

61194486745 is a deficient number, since it is larger than the sum of its proper divisors (22913043623).

61194486745 is a wasteful number, since it uses less digits than its factorization.

61194486745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3826320.

The product of its digits is 5806080, while the sum is 55.

The spelling of 61194486745 in words is "sixty-one billion, one hundred ninety-four million, four hundred eighty-six thousand, seven hundred forty-five".