61785316346 has 32 divisors (see below), whose sum is σ = 106568542080. Its totient is φ = 26642113344.

The previous prime is 61785316339. The next prime is 61785316357. The reversal of 61785316346 is 64361358716.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 61785316294 and 61785316303.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1175681 + ... + 1227108.

It is an arithmetic number, because the mean of its divisors is an integer number (3330266940).

Almost surely, 2^61785316346 is an apocalyptic number.

61785316346 is a deficient number, since it is larger than the sum of its proper divisors (44783225734).

61785316346 is a wasteful number, since it uses less digits than its factorization.

61785316346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402870.

The product of its digits is 2177280, while the sum is 50.

The spelling of 61785316346 in words is "sixty-one billion, seven hundred eighty-five million, three hundred sixteen thousand, three hundred forty-six".