61717283056 has 60 divisors (see below), whose sum is σ = 141254296200. Its totient is φ = 25895351040.

The previous prime is 61717283011. The next prime is 61717283057. The reversal of 61717283056 is 65038271716.

It is a super-3 number, since 3×61717283056³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61717282997 and 61717283015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61717283057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1007731 + ... + 1067218.

It is an arithmetic number, because the mean of its divisors is an integer number (2354238270).

Almost surely, 2^61717283056 is an apocalyptic number.

It is an amenable number.

61717283056 is an abundant number, since it is smaller than the sum of its proper divisors (79537013144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61717283056 is a wasteful number, since it uses less digits than its factorization.

61717283056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074994 (or 2074975 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 61717283056 in words is "sixty-one billion, seven hundred seventeen million, two hundred eighty-three thousand, fifty-six".