61408804824 has 48 divisors (see below), whose sum is σ = 168657999120. Its totient is φ = 20181295680.

The previous prime is 61408804823. The next prime is 61408804939. The reversal of 61408804824 is 42840880416.

61408804824 is a `hidden beast` number, since 614 + 0 + 8 + 8 + 0 + 4 + 8 + 24 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 61408804824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61408804823) 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, 6001227 + ... + 6011450.

It is an arithmetic number, because the mean of its divisors is an integer number (3513708315).

Almost surely, 2^61408804824 is an apocalyptic number.

It is an amenable number.

61408804824 is an abundant number, since it is smaller than the sum of its proper divisors (107249194296).

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

61408804824 is a wasteful number, since it uses less digits than its factorization.

61408804824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12012760 (or 12012753 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 45.

The spelling of 61408804824 in words is "sixty-one billion, four hundred eight million, eight hundred four thousand, eight hundred twenty-four".