61893194625 has 48 divisors (see below), whose sum is σ = 113678055504. Its totient is φ = 32386848000.

The previous prime is 61893194609. The next prime is 61893194647. The reversal of 61893194625 is 52649139816.

61893194625 is a `hidden beast` number, since 6 + 1 + 8 + 9 + 3 + 1 + 9 + 4 + 625 = 666.

61893194625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 19420930881 + 42472263744 = 139359^2 + 206088^2 .

It is not a de Polignac number, because 61893194625 - 2⁴ = 61893194609 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 459396 + ... + 578645.

It is an arithmetic number, because the mean of its divisors is an integer number (2368292823).

Almost surely, 2^61893194625 is an apocalyptic number.

It is an amenable number.

61893194625 is a deficient number, since it is larger than the sum of its proper divisors (51784860879).

61893194625 is a wasteful number, since it uses less digits than its factorization.

61893194625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038115 (or 1038102 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The spelling of 61893194625 in words is "sixty-one billion, eight hundred ninety-three million, one hundred ninety-four thousand, six hundred twenty-five".