61024487776 has 96 divisors (see below), whose sum is σ = 138265989120. Its totient is φ = 25970841600.

The previous prime is 61024487747. The next prime is 61024487893. The reversal of 61024487776 is 67778442016.

It is a happy number.

61024487776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37691895 + ... + 37693513.

It is an arithmetic number, because the mean of its divisors is an integer number (1440270720).

Almost surely, 2^61024487776 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 61024487776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69132994560).

61024487776 is an abundant number, since it is smaller than the sum of its proper divisors (77241501344).

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

61024487776 is a wasteful number, since it uses less digits than its factorization.

61024487776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708 (or 2700 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 52.

The spelling of 61024487776 in words is "sixty-one billion, twenty-four million, four hundred eighty-seven thousand, seven hundred seventy-six".