61683133273 has 4 divisors (see below), whose sum is σ = 61683636240. Its totient is φ = 61682630308.

The previous prime is 61683133249. The next prime is 61683133279. The reversal of 61683133273 is 37233138616.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 61683133273 - 2¹³ = 61683125081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61683133279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66486 + ... + 357472.

It is an arithmetic number, because the mean of its divisors is an integer number (15420909060).

Almost surely, 2^61683133273 is an apocalyptic number.

It is an amenable number.

61683133273 is a deficient number, since it is larger than the sum of its proper divisors (502967).

61683133273 is a wasteful number, since it uses less digits than its factorization.

61683133273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502966.

The product of its digits is 326592, while the sum is 43.

The spelling of 61683133273 in words is "sixty-one billion, six hundred eighty-three million, one hundred thirty-three thousand, two hundred seventy-three".