61683824758872 has 16 divisors (see below), whose sum is σ = 154209561897240. Its totient is φ = 20561274919616.

The previous prime is 61683824758847. The next prime is 61683824758873. The reversal of 61683824758872 is 27885742838616.

It is a junction number, because it is equal to n+sod(n) for n = 61683824758794 and 61683824758803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61683824758873) 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, 1285079682453 + ... + 1285079682500.

Almost surely, 2^{61683824758872} is an apocalyptic number.

It is an amenable number.

61683824758872 is an abundant number, since it is smaller than the sum of its proper divisors (92525737138368).

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

61683824758872 is a wasteful number, since it uses less digits than its factorization.

61683824758872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570159364962 (or 2570159364958 counting only the distinct ones).

The product of its digits is 1734082560, while the sum is 75.

The spelling of 61683824758872 in words is "sixty-one trillion, six hundred eighty-three billion, eight hundred twenty-four million, seven hundred fifty-eight thousand, eight hundred seventy-two".