61772328720263 has 16 divisors (see below), whose sum is σ = 71049413279040. Its totient is φ = 52608387326976.

The previous prime is 61772328720199. The next prime is 61772328720359. The reversal of 61772328720263 is 36202782327716.

It is a cyclic number.

It is not a de Polignac number, because 61772328720263 - 2⁶ = 61772328720199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61772328720199 and 61772328720208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61772328720463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27074273 + ... + 29267061.

It is an arithmetic number, because the mean of its divisors is an integer number (4440588329940).

Almost surely, 2^{61772328720263} is an apocalyptic number.

61772328720263 is a deficient number, since it is larger than the sum of its proper divisors (9277084558777).

61772328720263 is a wasteful number, since it uses less digits than its factorization.

61772328720263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218586.

The product of its (nonzero) digits is 14224896, while the sum is 56.

The spelling of 61772328720263 in words is "sixty-one trillion, seven hundred seventy-two billion, three hundred twenty-eight million, seven hundred twenty thousand, two hundred sixty-three".