61273860206 has 32 divisors (see below), whose sum is σ = 104951609280. Its totient is φ = 26579022336.

The previous prime is 61273860203. The next prime is 61273860251. The reversal of 61273860206 is 60206837216.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61273860203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215615 + ... + 411141.

It is an arithmetic number, because the mean of its divisors is an integer number (3279737790).

Almost surely, 2^61273860206 is an apocalyptic number.

61273860206 is a deficient number, since it is larger than the sum of its proper divisors (43677749074).

61273860206 is a wasteful number, since it uses less digits than its factorization.

61273860206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196268.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 61273860206 in words is "sixty-one billion, two hundred seventy-three million, eight hundred sixty thousand, two hundred six".