61828184916 has 18 divisors (see below), whose sum is σ = 156287911962. Its totient is φ = 20609394960.

The previous prime is 61828184911. The next prime is 61828184917. The reversal of 61828184916 is 61948182816.

It is a happy number.

61828184916 is a `hidden beast` number, since 61 + 82 + 8 + 18 + 491 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 58079072016 + 3749112900 = 240996^2 + 61230^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61828184911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 858724755 + ... + 858724826.

Almost surely, 2^61828184916 is an apocalyptic number.

It is an amenable number.

61828184916 is an abundant number, since it is smaller than the sum of its proper divisors (94459727046).

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

61828184916 is a wasteful number, since it uses less digits than its factorization.

61828184916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717449591 (or 1717449586 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 54.

The spelling of 61828184916 in words is "sixty-one billion, eight hundred twenty-eight million, one hundred eighty-four thousand, nine hundred sixteen".