61641848804 has 12 divisors (see below), whose sum is σ = 107891040684. Its totient is φ = 30815837184.

The previous prime is 61641848777. The next prime is 61641848833. The reversal of 61641848804 is 40884814616.

It can be written as a sum of positive squares in 2 ways, for example, as 35268088804 + 26373760000 = 187798^2 + 162400^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1244477 + ... + 1293060.

It is an arithmetic number, because the mean of its divisors is an integer number (8990920057).

Almost surely, 2^61641848804 is an apocalyptic number.

It is an amenable number.

61641848804 is a deficient number, since it is larger than the sum of its proper divisors (46249191880).

61641848804 is a wasteful number, since it uses less digits than its factorization.

61641848804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543614 (or 2543612 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 50.

The spelling of 61641848804 in words is "sixty-one billion, six hundred forty-one million, eight hundred forty-eight thousand, eight hundred four".