61484839776 has 168 divisors, whose sum is σ = 183258588240. Its totient is φ = 20295173376.

The previous prime is 61484839753. The next prime is 61484839783. The reversal of 61484839776 is 67793848416.

61484839776 is a `hidden beast` number, since 6 + 1 + 484 + 83 + 9 + 7 + 76 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2389990 + ... + 2415578.

It is an arithmetic number, because the mean of its divisors is an integer number (1090824930).

Almost surely, 2^61484839776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61484839776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91629294120).

61484839776 is an abundant number, since it is smaller than the sum of its proper divisors (121773748464).

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

61484839776 is a wasteful number, since it uses less digits than its factorization.

61484839776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25720 (or 25697 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 63.

The spelling of 61484839776 in words is "sixty-one billion, four hundred eighty-four million, eight hundred thirty-nine thousand, seven hundred seventy-six".